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    156 vulnerabilities by Github

    CVE-2026-48501 (GCVE-0-2026-48501)

    Vulnerability from cvelistv5 – Published: 2026-05-29 15:14 – Updated: 2026-05-29 17:14
    VLAI
    Title
    GitHub CLI tokens leak via `gh attestation` commands
    Summary
    GitHub CLI (gh) is GitHub’s official command line tool. Prior to 2.93.0, GitHub CLI incorrectly includes authorization header in API requests to TUF repository mirrors via gh attestation, gh release verify, and gh release verify-asset commands. The CLI uses a shared HTTP client with an authentication layer that automatically attaches tokens to outgoing requests. This layer lacks accurate host detection and can incorrectly attribute the target host, providing it with a token it should never receive. Specifically, the host normalization logic collapses any *.github.com subdomain to github.com, so a request to tuf-repo.github.com (a GitHub Pages site, not a GitHub API endpoint) is treated as a request to github.com and receives the user's github.com token. For hosts that don't match github.com or a known GHES instance at all, the resolver falls back to GH_ENTERPRISE_TOKEN if set. The gh attestation, gh release verify and gh release verify-asset commands fetch data from several external hosts as part of their normal operation (TUF metadata from tuf-repo.github.com and tuf-repo-cdn.sigstore.dev, artifact bundles from Azure Blob Storage). Because these requests go through the same authenticated HTTP client, the token is sent to all of them. This vulnerability is fixed in 2.93.0.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-863 - Incorrect Authorization
    Assigner
    References
    Impacted products
    Vendor Product Version
    cli cli Affected: < 2.93.0
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-9312 (GCVE-0-2026-9312)

    Vulnerability from cvelistv5 – Published: 2026-05-27 00:02 – Updated: 2026-05-28 03:55
    VLAI
    Title
    Server-Side Request Forgery vulnerability in GitHub Enterprise Server allowed access to internal services via path traversal in upload endpoint
    Summary
    A server-side request forgery (SSRF) vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to send crafted requests to internal services by exploiting insufficient input validation in an upload endpoint. By injecting path traversal content into request parameters, an attacker could bypass the intended request flow and redirect internal API calls, potentially accessing internal services and exposing sensitive credentials. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.22 and was fixed in versions 3.16.20, 3.17.17, 3.18.11, 3.19.8, 3.20.4, and 3.21.1. This vulnerability was reported via the GitHub Bug Bounty program.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-918 - Server-Side Request Forgery (SSRF)
    Assigner
    Impacted products
    Vendor Product Version
    GitHub Enterprise Server Affected: 3.16.0 , ≤ 3.16.19 (semver)
    Affected: 3.17.0 , ≤ 3.17.16 (semver)
    Affected: 3.18.0 , ≤ 3.18.10 (semver)
    Affected: 3.19.0 , ≤ 3.19.7 (semver)
    Affected: 3.20.0 , ≤ 3.20.3 (semver)
    Affected: 3.21.0 , < 3.21.1 (semver)
    Create a notification for this product.
    Credits
    ahacker1
    Show details on NVD website

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    CVE-2026-8606 (GCVE-0-2026-8606)

    Vulnerability from cvelistv5 – Published: 2026-05-26 23:59 – Updated: 2026-05-27 13:50
    VLAI
    Title
    Server-Side Request Forgery in GitHub Enterprise Server via Advisory Package URL Endpoint
    Summary
    A Server-Side Request Forgery (SSRF) vulnerability was identified in GitHub Enterprise Server that allowed an attacker to cause the server to issue HTTP requests to internal services via the security advisories package lookup feature. By directing requests to an internal management service and measuring response timing, an attacker could infer the values of sensitive environment variables, including signing secrets and private keys. Exploitation required GitHub Packages to be enabled; on instances not running in private mode the vulnerability was exploitable without authentication, otherwise any authenticated user could exploit it. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21.1 and was fixed in versions 3.20.3, 3.19.7, 3.18.10, 3.17.16, and 3.16.19. This vulnerability was reported via the GitHub Bug Bounty program.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-918 - Server-Side request forgery (SSRF)
    Assigner
    Impacted products
    Vendor Product Version
    GitHub Enterprise Server Affected: 3.21.0 , < 3.21.1 (semver)
    Affected: 3.20.0 , ≤ 3.20.2 (semver)
    Affected: 3.19.0 , ≤ 3.19.6 (semver)
    Affected: 3.18.0 , ≤ 3.18.9 (semver)
    Affected: 3.17.0 , ≤ 3.17.15 (semver)
    Affected: 3.16.0 , ≤ 3.16.18 (semver)
    Create a notification for this product.
    Credits
    R31n
    Show details on NVD website

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    CVE-2026-45803 (GCVE-0-2026-45803)

    Vulnerability from cvelistv5 – Published: 2026-05-15 15:26 – Updated: 2026-05-15 17:48
    VLAI
    Title
    gh: GitHub Actions log output in `gh run view` allows terminal escape sequence injection
    Summary
    `gh` is GitHub’s official command line tool. From 1.6.0 to before 2.92.0, a security vulnerability has been identified in GitHub CLI that could allow terminal escape sequence injection when users view GitHub Actions workflow logs using gh run view --log or gh run view --log-failed. The vulnerability stems from the way GitHub CLI handles raw Actions log output. The gh run view --log and gh run view --log-failed commands stream workflow log lines to stdout or the configured pager without sanitizing terminal control sequences. An attacker who can influence GitHub Actions log content, for example via a PR triggered workflow, can embed escape sequences that are replayed in the user's terminal when they inspect the run. Depending on the victim's terminal emulator, injected sequences could change the window title, manipulate on screen content, or in some terminal emulators (such as screen) potentially execute arbitrary commands. This vulnerability is fixed in 2.92.0.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-150 - Improper Neutralization of Escape, Meta, or Control Sequences
    Assigner
    References
    Impacted products
    Vendor Product Version
    cli cli Affected: >= 1.6.0, < 2.92.0
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-45033 (GCVE-0-2026-45033)

    Vulnerability from cvelistv5 – Published: 2026-05-13 15:45 – Updated: 2026-05-13 18:38
    VLAI
    Title
    GitHub Copilot CLI: Nested Bare Repository Can Execute Arbitrary Commands via core.fsmonitor
    Summary
    GitHub Copilot CLI brings AI-powered coding assistance directly to your command line. Prior to 1.0.43, a security vulnerability has been identified in GitHub Copilot CLI where a malicious bare git repository nested inside a project directory can achieve arbitrary code execution when the agent performs git operations. By exploiting git's automatic bare repository discovery during directory traversal, an attacker can set core.fsmonitor or other executable config keys to run arbitrary commands without user awareness or approval. The vulnerability arises because git's core.fsmonitor config key (and 15+ similar keys such as core.hookspath, diff.external, merge.tool, etc.) can specify arbitrary shell commands that git will execute as part of normal operations like status, diff, or rev-parse. This vulnerability is fixed in 1.0.43.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-696 - Incorrect Behavior Order
    Assigner
    References
    Impacted products
    Vendor Product Version
    github copilot-cli Affected: < 1.0.43
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-8106 (GCVE-0-2026-8106)

    Vulnerability from cvelistv5 – Published: 2026-05-07 21:18 – Updated: 2026-05-08 13:07
    VLAI
    Title
    Reflected HTML injection vulnerability in GitHub Enterprise Server Management Console login page allowed credential theft
    Summary
    A reflected HTML injection vulnerability was identified in the GitHub Enterprise Server Management Console login page that could allow credential theft. The redirect_to query parameter on the /setup/unlock endpoint was reflected into an HTML attribute without proper sanitization, enabling an attacker to inject a form element that could capture administrator credentials. Exploitation required an administrator to click a crafted link and enter their credentials. This vulnerability affected GitHub Enterprise Server versions 3.19.1 through 3.19.5 and 3.20.0 through 3.20.1, and was fixed in versions 3.19.6 and 3.20.2. This vulnerability was reported via the GitHub Bug Bounty program.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
    Assigner
    Impacted products
    Vendor Product Version
    GitHub Enterprise Server Affected: 3.19.1 , ≤ 3.19.5 (semver)
    Affected: 3.20.0 , ≤ 3.20.1 (semver)
    Unaffected: 3.19.0 (semver)
    Unaffected: 3.21.0 (semver)
    Create a notification for this product.
    Credits
    maksyche
    Show details on NVD website

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    CVE-2026-8034 (GCVE-0-2026-8034)

    Vulnerability from cvelistv5 – Published: 2026-05-07 21:18 – Updated: 2026-05-08 13:03
    VLAI
    Title
    Server-side request forgery vulnerability in GitHub Enterprise Server notebook viewer via URL parser confusion
    Summary
    A server-side request forgery (SSRF) vulnerability was identified in the GitHub Enterprise Server notebook viewer that allowed an attacker to access internal services by exploiting URL parser confusion between the validation layer and the HTTP request library. The hostname validation used a different URL parser than the request library, enabling a crafted URL to pass validation while directing the request to an unintended host. Exploitation required network access to the GitHub Enterprise Server instance. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.16.18, 3.17.15, 3.18.9, 3.19.6, and 3.20.2. This vulnerability was reported via the GitHub Bug Bounty program.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-918 - Server-Side request forgery (SSRF)
    • CWE-436 - Interpretation Conflict
    Assigner
    Impacted products
    Vendor Product Version
    GitHub Enterprise Server Affected: 3.16.0 , ≤ 3.16.17 (semver)
    Affected: 3.17.0 , ≤ 3.17.14 (semver)
    Affected: 3.18.0 , ≤ 3.18.8 (semver)
    Affected: 3.19.0 , ≤ 3.19.5 (semver)
    Affected: 3.20.0 , ≤ 3.20.1 (semver)
    Unaffected: 3.21.0 (semver)
    Create a notification for this product.
    Credits
    R31n
    Show details on NVD website

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    CVE-2026-7541 (GCVE-0-2026-7541)

    Vulnerability from cvelistv5 – Published: 2026-05-07 21:18 – Updated: 2026-05-08 13:44
    VLAI
    Title
    Denial of service vulnerability in GitHub Enterprise Server allowed service disruption via unauthenticated API endpoint
    Summary
    A denial of service vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to cause service disruption by sending crafted requests with deeply nested JSON payloads to an unauthenticated API endpoint. The endpoint parsed user-controlled JSON request bodies without size or depth limits, causing excessive CPU and memory consumption. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.20.2, 3.19.6, 3.18.9, 3.17.15, and 3.16.18. This vulnerability was reported via the GitHub Bug Bounty program.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-770 - Allocation of resources without limits or throttling
    Assigner
    Impacted products
    Vendor Product Version
    GitHub Enterprise Server Affected: 3.16.0 , ≤ 3.16.17 (semver)
    Affected: 3.17.0 , ≤ 3.17.14 (semver)
    Affected: 3.18.0 , ≤ 3.18.8 (semver)
    Affected: 3.19.0 , ≤ 3.19.5 (semver)
    Affected: 3.20.0 , ≤ 3.20.1 (semver)
    Create a notification for this product.
    Credits
    Nguyen Nhat Anh (GitHub: anh2025)
    Show details on NVD website

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    CVE-2026-6736 (GCVE-0-2026-6736)

    Vulnerability from cvelistv5 – Published: 2026-05-07 21:14 – Updated: 2026-05-08 13:57
    VLAI
    Title
    Authentication bypass vulnerability in GitHub Enterprise Server allowed creation of local user accounts bypassing the configured external identity provider
    Summary
    An authentication bypass vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to create a local user account, bypassing the configured external identity provider. When external authentication was enabled, the signup endpoint did not properly enforce the authentication restriction, allowing account creation and session establishment without identity provider validation. The created account was limited to the default base permissions configured on the instance. Exploitation required network access to a GHES instance configured with an external authentication provider. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.20.2, 3.19.6, 3.18.9, 3.17.15, and 3.16.18.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-306 - Missing Authentication for Critical Function
    Assigner
    Impacted products
    Vendor Product Version
    GitHub Enterprise Server Affected: 3.16.0 , ≤ 3.16.17 (semver)
    Affected: 3.17.0 , ≤ 3.17.14 (semver)
    Affected: 3.18.0 , ≤ 3.18.8 (semver)
    Affected: 3.19.0 , ≤ 3.19.5 (semver)
    Affected: 3.20.0 , ≤ 3.20.1 (semver)
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-5845 (GCVE-0-2026-5845)

    Vulnerability from cvelistv5 – Published: 2026-04-21 22:42 – Updated: 2026-04-22 18:04
    VLAI
    Title
    Improper authorization fallback allows scoped user-to-server token installation escape in GitHub Enterprise Server
    Summary
    An improper authorization vulnerability in scoped user-to-server (ghu_) token authorization in GitHub Enterprise Server allows an authenticated attacker to access private repositories outside the intended installation scope, which can include write operations, via an authorization fallback that treated a revoked/deleted installation as a global installation context, which could be chained with token revocation timing and SSH push attribution to obtain and reuse a victim-scoped token. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.20.1, 3.19.5, 3.18.8, 3.17.14, 3.16.17, 3.15.21, and 3.14.26. This vulnerability was reported via the GitHub Bug Bounty program.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-639 - Authorization bypass through User-Controlled key
    Assigner
    Impacted products
    Vendor Product Version
    GitHub Enterprise Server Affected: 3.20.0 , < 3.20.1 (semver)
    Affected: 3.19.0 , ≤ 3.19.4 (semver)
    Affected: 3.18.0 , ≤ 3.18.7 (semver)
    Affected: 3.17.0 , ≤ 3.17.13 (semver)
    Affected: 3.16.0 , ≤ 3.16.16 (semver)
    Affected: 3.15.0 , ≤ 3.15.20 (semver)
    Affected: 3.14.0 , ≤ 3.14.25 (semver)
    Create a notification for this product.
    Credits
    ahacker1
    Show details on NVD website

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    CVE-2026-3307 (GCVE-0-2026-3307)

    Vulnerability from cvelistv5 – Published: 2026-04-21 22:23 – Updated: 2026-04-22 18:00
    VLAI
    Title
    Authorization bypass in GitHub Enterprise Server secret scanning push protection allows cross-repository modification of delegated bypass reviewers
    Summary
    An authorization bypass vulnerability was identified in GitHub Enterprise Server that allowed an attacker with admin access on one repository to modify the secret scanning push protection delegated bypass reviewer list on another repository by manipulating the owner_id parameter in the request body. Authorization was verified against the repository in the URL, but the action was applied to a different repository specified in the request body. The impact is limited to assigning existing trusted users as bypass reviewers; it does not allow adding arbitrary external users. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.14.25, 3.15.20, 3.16.16, 3.17.13, 3.18.7, 3.19.4 and 3.20.1. This vulnerability was reported via the GitHub Bug Bounty program.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-639 - Authorization Bypass Through User-Controlled Key
    Assigner
    Impacted products
    Vendor Product Version
    GitHub Enterprise Server Affected: 3.14.0 , ≤ 3.14.24 (semver)
    Affected: 3.15.0 , ≤ 3.15.19 (semver)
    Affected: 3.16.0 , ≤ 3.16.15 (semver)
    Affected: 3.17.0 , ≤ 3.17.12 (semver)
    Affected: 3.18.0 , ≤ 3.18.6 (semver)
    Affected: 3.19.0 , ≤ 3.19.3 (semver)
    Affected: 3.20 , ≤ 3.20.0 (semver)
    Create a notification for this product.
    Credits
    ahacker1
    Show details on NVD website

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    CVE-2026-5512 (GCVE-0-2026-5512)

    Vulnerability from cvelistv5 – Published: 2026-04-21 22:12 – Updated: 2026-04-22 17:39
    VLAI
    Title
    Improper authorization vulnerability in GitHub Enterprise Server allowed disclosure of private repository names via mobile upload policy API
    Summary
    An improper authorization vulnerability was identified in GitHub Enterprise Server that allowed an authenticated attacker to determine the names of private repositories by their numeric ID. The mobile upload policy API endpoint did not perform an early authorization check, and validation error messages included the full repository name for repositories the caller did not have access to. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.20.1, 3.19.5, 3.18.8, 3.17.14, 3.16.17, 3.15.21, and 3.14.26. This vulnerability was reported via the GitHub Bug Bounty program.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-201 - Insertion of sensitive information into sent data
    Assigner
    Impacted products
    Vendor Product Version
    GitHub Enterprise Server Affected: 3.14.0 , ≤ 3.14.25 (semver)
    Affected: 3.15.0 , ≤ 3.15.20 (semver)
    Affected: 3.16.0 , ≤ 3.16.16 (semver)
    Affected: 3.17.0 , ≤ 3.17.13 (semver)
    Affected: 3.18.0 , ≤ 3.18.7 (semver)
    Affected: 3.19.0 , ≤ 3.19.4 (semver)
    Affected: 3.20.0 , < 3.20.1 (semver)
    Create a notification for this product.
    Credits
    ahacker1
    Show details on NVD website

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    CVE-2026-4296 (GCVE-0-2026-4296)

    Vulnerability from cvelistv5 – Published: 2026-04-21 22:12 – Updated: 2026-04-22 13:16
    VLAI
    Title
    Incorrect Regular Expression vulnerability in GitHub Enterprise Server allowed unauthorized access to user accounts via OAuth callback URL validation bypass
    Summary
    An incorrect regular expression vulnerability was identified in GitHub Enterprise Server that allowed an attacker to bypass OAuth redirect URI validation. An attacker with knowledge of a first-party OAuth application's registered callback URL could craft a malicious authorization link that, when clicked by a victim, would redirect the OAuth authorization code to an attacker-controlled domain. This could allow the attacker to gain unauthorized access to the victim's account with the scopes granted to the OAuth application. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.20.1, 3.19.5, 3.18.8, 3.17.14, 3.16.17, 3.15.21, 3.14.26. This vulnerability was reported via the GitHub Bug Bounty program.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-185 - Incorrect Regular Expression
    Assigner
    Impacted products
    Vendor Product Version
    GitHub Enterprise Server Affected: 3.14.0 , ≤ 3.14.25 (semver)
    Affected: 3.15.0 , ≤ 3.15.20 (semver)
    Affected: 3.16.0 , ≤ 3.16.16 (semver)
    Affected: 3.17.0 , ≤ 3.17.13 (semver)
    Affected: 3.18.0 , ≤ 3.18.7 (semver)
    Affected: 3.19.0 , ≤ 3.19.4 (semver)
    Affected: 3.20.0 , < 3.20.1 (semver)
    Create a notification for this product.
    Credits
    ahacker1 hacktron
    Show details on NVD website

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    CVE-2026-4821 (GCVE-0-2026-4821)

    Vulnerability from cvelistv5 – Published: 2026-04-21 22:12 – Updated: 2026-06-10 04:53
    VLAI

    This CVE ID has been rejected or withdrawn by its CVE Numbering Authority as it was published in error.

    Show details on NVD website

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    CVE-2026-5921 (GCVE-0-2026-5921)

    Vulnerability from cvelistv5 – Published: 2026-04-21 22:11 – Updated: 2026-04-22 13:18
    VLAI
    Title
    Server-Side Request Forgery in GitHub Enterprise Server allowed extraction of sensitive environment variables via timing side-channel attack
    Summary
    A server-side request forgery (SSRF) vulnerability was identified in GitHub Enterprise Server that allowed an attacker to extract sensitive environment variables from the instance through a timing side-channel attack against the notebook rendering service. When private mode was disabled, the notebook viewer followed HTTP redirects without revalidating the destination host, enabling an unauthenticated SSRF to internal services. By chaining this with regex filter queries against an internal API and measuring response time differences, an attacker could infer secret values character by character. Exploitation required that private mode be disabled and that the attacker be able to chain the instance's open redirect endpoint through an external redirect to reach internal services. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.14.26, 3.15.21, 3.16.17, 3.17.14, 3.18.8, 3.19.5, and 3.20.1. This vulnerability was reported via the GitHub Bug Bounty program.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-918 - Server-Side Request Forgery (SSRF)
    Assigner
    Impacted products
    Vendor Product Version
    GitHub Enterprise Server Affected: 3.14.0 , < 3.14.26 (semver)
    Affected: 3.15.0 , < 3.15.21 (semver)
    Affected: 3.16.0 , < 3.16.17 (semver)
    Affected: 3.17.0 , < 3.17.14 (semver)
    Affected: 3.18.0 , < 3.18.8 (semver)
    Affected: 3.19.0 , < 3.19.5 (semver)
    Affected: 3.20.0 , < 3.20.1 (semver)
    Create a notification for this product.
    Credits
    R31n
    Show details on NVD website

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    CVE-2026-3582 (GCVE-0-2026-3582)

    Vulnerability from cvelistv5 – Published: 2026-03-10 18:56 – Updated: 2026-03-11 14:13
    VLAI
    Title
    Incorrect Authorization in GitHub Enterprise Server allows access to issue and commit search results without repo scope
    Summary
    An Incorrect Authorization vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user with a classic personal access token (PAT) lacking the repo scope to retrieve issues and commits from private and internal repositories via the search REST API endpoints. The user must have had existing access to the repository through organization membership or as a collaborator for the vulnerability to be exploitable. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.20 and was fixed in versions 3.16.15, 3.17.12, 3.18.6 and 3.19.3. This vulnerability was reported via the GitHub Bug Bounty program.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    Impacted products
    Vendor Product Version
    GitHub Enterprise Server Affected: 3.16.0 , ≤ 3.16.14 (semver)
    Affected: 3.17.0 , ≤ 3.17.11 (semver)
    Affected: 3.18.0 , ≤ 3.18.5 (semver)
    Affected: 3.19.0 , ≤ 3.19.2 (semver)
    Create a notification for this product.
    Credits
    Sergej Ljubojevic
    Show details on NVD website

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    CVE-2026-2266 (GCVE-0-2026-2266)

    Vulnerability from cvelistv5 – Published: 2026-03-10 18:55 – Updated: 2026-03-11 14:15
    VLAI
    Title
    Improper neutralization of input vulnerability was identified in GitHub Enterprise Server that allowed cross-site scripting via task list content and enabled arbitrary HTML injection
    Summary
    An improper neutralization of input vulnerability was identified in GitHub Enterprise Server that allowed DOM-based cross-site scripting via task list content. The task list content extraction logic did not properly re-encode browser-decoded text nodes before rendering, allowing user-supplied HTML to be injected into the page. An authenticated attacker could craft malicious task list items in issues or pull requests to execute arbitrary scripts in the context of another user's browser session. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.20 and was fixed in versions 3.18.6 and 3.19.3. This vulnerability was reported via the GitHub Bug Bounty program.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')
    Assigner
    Impacted products
    Vendor Product Version
    GitHub Enterprise Server Affected: 3.18.0 , ≤ 3.18.5 (semver)
    Affected: 3.19.0 , ≤ 3.19.2 (semver)
    Create a notification for this product.
    Credits
    André Storfjord Kristiansen
    Show details on NVD website

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    CVE-2026-3306 (GCVE-0-2026-3306)

    Vulnerability from cvelistv5 – Published: 2026-03-10 17:46 – Updated: 2026-03-11 14:17
    VLAI
    Title
    Improper authorization in GitHub Projects allows modification of issue and pull request metadata without repository write access
    Summary
    An improper authorization vulnerability was identified in GitHub Enterprise Server that allowed a user with read access to a repository and write access to a project to modify issue and pull request metadata through the project. When adding an item to a project that already existed, column value updates were applied without verifying the actor's repository write permissions. This vulnerability was reported via the GitHub Bug Bounty program and has been fixed in GitHub Enterprise Server versions 3.14.24, 3.15.19, 3.16.15, 3.17.12, 3.18.6 and 3.19.3.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-639 - Authorization Bypass Through User-Controlled Key
    Assigner
    Impacted products
    Vendor Product Version
    GitHub Enterprise Server Affected: 3.14.0 , ≤ 3.14.23 (semver)
    Affected: 3.15.0 , ≤ 3.15.18 (semver)
    Affected: 3.16.0 , ≤ 3.16.14 (semver)
    Affected: 3.17.0 , ≤ 3.17.11 (semver)
    Affected: 3.18.0 , ≤ 3.18.5 (semver)
    Affected: 3.19.0 , ≤ 3.19.2 (semver)
    Create a notification for this product.
    Credits
    ahacker1
    Show details on NVD website

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    CVE-2026-3854 (GCVE-0-2026-3854)

    Vulnerability from cvelistv5 – Published: 2026-03-10 17:37 – Updated: 2026-04-29 03:55
    VLAI
    Title
    Remote code execution via git push option injection in GitHub Enterprise Server
    Summary
    An improper neutralization of special elements vulnerability was identified in GitHub Enterprise Server that allowed an attacker with push access to a repository to achieve remote code execution on the instance. During a git push operation, user-supplied push option values were not properly sanitized before being included in internal service headers. Because the internal header format used a delimiter character that could also appear in user input, an attacker could inject additional metadata fields through crafted push option values. This vulnerability was reported via the GitHub Bug Bounty program and has been fixed in GitHub Enterprise Server versions 3.14.25, 3.15.20, 3.16.16, 3.17.13, 3.18.7 and 3.19.4.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')
    Assigner
    Impacted products
    Vendor Product Version
    GitHub Enterprise Server Affected: 3.14.0 , ≤ 3.14.24 (semver)
    Affected: 3.15.0 , ≤ 3.15.19 (semver)
    Affected: 3.16.0 , ≤ 3.16.15 (semver)
    Affected: 3.17.0 , ≤ 3.17.12 (semver)
    Affected: 3.18.0 , ≤ 3.18.6 (semver)
    Affected: 3.19.0 , ≤ 3.19.3 (semver)
    Create a notification for this product.
    Credits
    Sagi Tzadik @ Wiz.io
    Show details on NVD website

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    CVE-2026-29783 (GCVE-0-2026-29783)

    Vulnerability from cvelistv5 – Published: 2026-03-06 16:39 – Updated: 2026-03-11 03:56
    VLAI
    Title
    GitHub Copilot CLI allows for dangerous shell expansion patterns that enable arbitrary command execution
    Summary
    The shell tool within GitHub Copilot CLI versions prior to and including 0.0.422 can allow arbitrary code execution through crafted bash parameter expansion patterns. An attacker who can influence the commands executed by the agent (e.g., via prompt injection through repository files, MCP server responses, or user instructions) can exploit bash parameter transformation operators to execute hidden commands, bypassing the safety assessment that classifies commands as "read-only." This has been patched in version 0.0.423. The vulnerability stems from how the CLI's shell safety assessment evaluates commands before execution. The safety layer parses and classifies shell commands as either read-only (safe) or write-capable (requires user approval). However, several bash parameter expansion features can embed executable code within arguments to otherwise read-only commands, causing them to appear safe while actually performing arbitrary operations. The specific dangerous patterns are ${var@P}, ${var=value} / ${var:=value}, ${!var}, and nested $(cmd) or <(cmd) inside ${...} expansions. An attacker who can influence command text sent to the shell tool - for example, through prompt injection via malicious repository content (README files, code comments, issue bodies), compromised or malicious MCP server responses, or crafted user instructions containing obfuscated commands - could achieve arbitrary code execution on the user's workstation. This is possible even in permission modes that require user approval for write operations, since the commands can appear to use only read-only utilities to ultimately trigger write operations. Successful exploitation could lead to data exfiltration, file modification, or further system compromise.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
    Assigner
    References
    Impacted products
    Vendor Product Version
    github copilot-cli Affected: <= 0.0.422
    Create a notification for this product.
    Show details on NVD website

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    CVE-2018-25188 (GCVE-0-2018-25188)

    Vulnerability from cvelistv5 – Published: 2026-03-06 12:19 – Updated: 2026-03-09 19:00
    VLAI
    Title
    Webiness Inventory 2.3 SQL Injection via WsModelGrid.php
    Summary
    Webiness Inventory 2.3 contains an SQL injection vulnerability that allows unauthenticated attackers to execute arbitrary SQL queries by injecting malicious code through the order parameter. Attackers can send POST requests to the WsModelGrid.php endpoint with crafted SQL payloads to extract sensitive database information including usernames, databases, and version details.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
    Assigner
    References
    Impacted products
    Date Public
    2018-11-11 12:00
    Credits
    Ihsan Sencan
    Show details on NVD website

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    CVE-2026-1999 (GCVE-0-2026-1999)

    Vulnerability from cvelistv5 – Published: 2026-02-18 20:44 – Updated: 2026-04-14 15:09
    VLAI
    Title
    Incorrect Authorization vulnerability was identified in GitHub Enterprise Server that allowed unauthorized merging of pull requests
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    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-863 - Incorrect Authorization
    Assigner
    Impacted products
    Vendor Product Version
    GitHub Enterprise Server Affected: 3.17.0 , < 3.17.11 (semver)
    Affected: 3.18.0 , < 3.18.5 (semver)
    Affected: 3.19.0 , < 3.19.2 (semver)
    Create a notification for this product.
    Credits
    ahacker1
    Show details on NVD website

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    CVE-2026-1355 (GCVE-0-2026-1355)

    Vulnerability from cvelistv5 – Published: 2026-02-18 20:42 – Updated: 2026-02-20 19:36
    VLAI
    Title
    Missing Authorization Check in GitHub Enterprise Server Allows Unauthorized Uploads to Repository Migration Exports
    Summary
    A Missing Authorization vulnerability was identified in GitHub Enterprise Server that allowed an attacker to upload unauthorized content to another user’s repository migration export due to a missing authorization check in the repository migration upload endpoint. By supplying the migration identifier, an attacker could overwrite or replace a victim’s migration archive, potentially causing victims to download attacker-controlled repository data during migration restores or automated imports. An attacker would require authentication to the victim's GitHub Enterprise Server instance. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.20 and was fixed in versions 3.19.2, 3.18.5, 3.17.11, 3.16.14, 3.15.18, 3.14.23. This vulnerability was reported via the GitHub Bug Bounty program.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    Impacted products
    Vendor Product Version
    GitHub Enterprise Server Affected: 3.19.0 , ≤ 3.19.1 (semver)
    Affected: 3.18.0 , ≤ 3.18.4 (semver)
    Affected: 3.17.0 , ≤ 3.17.10 (semver)
    Affected: 3.16.0 , ≤ 3.16.13 (semver)
    Affected: 3.15.0 , ≤ 3.15.17 (semver)
    Affected: 3.14.0 , ≤ 3.14.22 (semver)
    Create a notification for this product.
    Credits
    ahacker1
    Show details on NVD website

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    CVE-2026-0573 (GCVE-0-2026-0573)

    Vulnerability from cvelistv5 – Published: 2026-02-18 20:37 – Updated: 2026-02-18 21:20
    VLAI
    Title
    Improper Handling of HTTP Redirects vulnerability was identified in GitHub Enterprise Server that allowed leaking of authorization token and enabled remote code execution
    Summary
    An URL redirection vulnerability was identified in GitHub Enterprise Server that allowed attacker-controlled redirects to leak sensitive authorization tokens. The repository_pages API insecurely followed HTTP redirects when fetching artifact URLs, preserving the authorization header containing a privileged JWT. An authenticated user could redirect these requests to an attacker-controlled domain, exfiltrate the Actions.ManageOrgs JWT, and leverage it for potential remote code execution. Attackers would require access to the target GitHub Enterprise Server instance and the ability to exploit a legacy redirect to an attacker-controlled domain. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.19 and was fixed in versions 3.19.2, 3.18.4, 3.17.10, 3.16.13, 3.15.17, and 3.14.22. This vulnerability was reported via the GitHub Bug Bounty program.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
    Assigner
    Impacted products
    Vendor Product Version
    GitHub Enterprise Server Affected: 3.14 , ≤ 3.14.21 (semver)
    Affected: 3.15 , ≤ 3.15.16 (semver)
    Affected: 3.16 , ≤ 3.16.12 (semver)
    Affected: 3.17 , ≤ 3.17.9 (semver)
    Affected: 3.18 , ≤ 3.18.3 (semver)
    Affected: 3.19 , ≤ 3.19.1 (semver)
    Create a notification for this product.
    Credits
    R31n
    Show details on NVD website

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    CVE-2021-47832 (GCVE-0-2021-47832)

    Vulnerability from cvelistv5 – Published: 2026-01-16 19:09 – Updated: 2026-01-21 16:41
    VLAI

    This CVE ID has been rejected or withdrawn by its CVE Numbering Authority as a duplicate.

    Replaced by CVE-2022-50920

    Show details on NVD website

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    CVE-2025-13744 (GCVE-0-2025-13744)

    Vulnerability from cvelistv5 – Published: 2026-01-06 20:44 – Updated: 2026-01-06 21:02
    VLAI
    Title
    Improper Neutralization of Input During Web Page Generation vulnerability was identified in GitHub Enterprise Server that allowed rendering of malicious HTML
    Summary
    An Improper Neutralization of Input During Web Page Generation vulnerability was identified in GitHub Enterprise Server that allowed attacker controlled HTML to be rendered by the Filter component (search) across GitHub that could be used to exfiltrate sensitive information. An attacker would require permissions to create or modify the names of milestones, issues, pull requests, or similar entities that are rendered in the vulnerable filter/search components. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.20 and was fixed in versions 3.19.1, and 3.18.2, 3.17.8, 3.16.11, 3.15.15, and 3.14.20. This vulnerability was reported via the GitHub Bug Bounty program.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
    Assigner
    Impacted products
    Vendor Product Version
    GitHub Enterprise Server Affected: 3.14.0 , ≤ 3.14.19 (semver)
    Affected: 3.15.0 , ≤ 3.15.14 (semver)
    Affected: 3.16.0 , ≤ 3.16.10 (semver)
    Affected: 3.17.0 , ≤ 3.17.7 (semver)
    Affected: 3.18.0 , ≤ 3.18.1 (semver)
    Affected: 3.19 , ≤ 3.19.0 (semver)
    Create a notification for this product.
    Credits
    Roshan Kudave Johan Carlsson
    Show details on NVD website

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    CVE-2025-14046 (GCVE-0-2025-14046)

    Vulnerability from cvelistv5 – Published: 2025-12-11 17:52 – Updated: 2025-12-11 18:48
    VLAI
    Title
    Insufficient HTML Sanitization Allows User-Controlled DOM Elements to Overwrite Server-Initialized Data Islands and Trigger Unintended Server-Side POST Requests
    Summary
    An improper neutralization of input vulnerability was identified in GitHub Enterprise Server that allowed user-supplied HTML to inject DOM elements with IDs that collided with server-initialized data islands. These collisions could overwrite or shadow critical application state objects used by certain Project views, leading to unintended server-side POST requests or other unauthorized backend interactions. Successful exploitation requires an attacker to have access to the target GitHub Enterprise Server instance and to entice a privileged user to view crafted malicious content that includes conflicting HTML elements. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.18.3, 3.17.9, 3.16.12, 3.15.16, and 3.14.21.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
    Assigner
    Impacted products
    Vendor Product Version
    GitHub Enterprise Server Unaffected: 3.19.0 (semver)
    Affected: 3.18.0 , ≤ 3.18.2 (semver)
    Affected: 3.17.0 , ≤ 3.17.8 (semver)
    Affected: 3.16.0 , ≤ 3.16.11 (semver)
    Affected: 3.15.0 , ≤ 3.15.15 (semver)
    Affected: 3.14.0 , ≤ 3.14.20 (semver)
    Create a notification for this product.
    Credits
    André Storfjord Kristiansen
    Show details on NVD website

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    CVE-2025-11578 (GCVE-0-2025-11578)

    Vulnerability from cvelistv5 – Published: 2025-11-10 22:44 – Updated: 2025-12-02 20:08
    VLAI
    Title
    Pre-Receive Hook Path Collision Vulnerability in GitHub Enterprise Server Allowing Privilege Escalation
    Summary
    A privilege escalation vulnerability was identified in GitHub Enterprise Server that allowed an authenticated Enterprise admin to gain root SSH access to the appliance by exploiting a symlink escape in pre-receive hook environments. By crafting a malicious repository and environment, an attacker could replace system binaries during hook cleanup and execute a payload that adds their own SSH key to the root user’s authorized keys—thereby granting themselves root SSH access to the server. To exploit this vulnerability, the attacker needed to have enterprise admin privileges. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.19, and was fixed in versions 3.14.20, 3.15.15, 3.16.11, 3.17.8, 3.18.2. This vulnerability was reported via the GitHub Bug Bounty program.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
    Assigner
    Impacted products
    Vendor Product Version
    GitHub Enterprise Server Affected: 3.14 , ≤ 3.14.19 (semver)
    Affected: 3.15 , ≤ 3.15.14 (semver)
    Affected: 3.16 , ≤ 3.16.10 (semver)
    Affected: 3.17 , ≤ 3.17.7 (semver)
    Affected: 3.18 , ≤ 3.18.1 (semver)
    Create a notification for this product.
    Credits
    inspector-ambitious
    Show details on NVD website

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    CVE-2025-11892 (GCVE-0-2025-11892)

    Vulnerability from cvelistv5 – Published: 2025-11-10 22:43 – Updated: 2025-11-12 20:12
    VLAI
    Title
    DOM-based Cross-Site Scripting was identified in GitHub Enterprise Server Issues search allows privilege escalation and unauthorized workflow triggers
    Summary
    An improper neutralization of input vulnerability was identified in GitHub Enterprise Server that allows DOM-based cross-site scripting via Issues search label filter that could lead to privilege escalation and unauthorized workflow triggers. Successful exploitation requires an attacker to have access to the target GitHub Enterprise Server instance and to entice a user, while operating in sudo mode, to click on a crafted malicious link to perform actions that require elevated privileges. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.18.1, 3.17.7, 3.16.10, 3.15.14, 3.14.19.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
    Assigner
    Impacted products
    Vendor Product Version
    GitHub Enterprise Server Affected: 3.18.0 , < 3.18.1 (semver)
    Affected: 3.17.0 , ≤ 3.17.6 (semver)
    Affected: 3.16.0 , ≤ 3.16.9 (semver)
    Affected: 3.15.0 , ≤ 3.15.13 (semver)
    Affected: 3.14.0 , ≤ 3.14.18 (semver)
    Create a notification for this product.
    Credits
    André Storfjord Kristiansen
    Show details on NVD website

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    CVE-2025-8447 (GCVE-0-2025-8447)

    Vulnerability from cvelistv5 – Published: 2025-08-26 01:42 – Updated: 2025-08-26 18:34
    VLAI
    Title
    Incorrect authorization vulnerability was identified in GitHub Enterprise Server that allowed read-only access
    Summary
    An improper access control vulnerability was identified in GitHub Enterprise Server that allowed users with access to any repository to retrieve limited code content from another repository by creating a diff between the repositories. To exploit this vulnerability, an attacker needed to know the name of a private repository along with its branches, tags, or commit SHAs that they could use to trigger compare/diff functionality and retrieve limited code without proper authorization. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.18, and was fixed in versions 3.14.17, 3.15.12, 3.16.8 and 3.17.5. This vulnerability was reported via the GitHub Bug Bounty program.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-639 - Authorization Bypass Through User-Controlled Key
    Assigner
    Impacted products
    Vendor Product Version
    GitHub Enterprise Server Affected: 3.14 , ≤ 3.14.16 (semver)
    Affected: 3.15 , ≤ 3.15.11 (semver)
    Affected: 3.16 , ≤ 3.16.7 (semver)
    Affected: 3.17 , ≤ 3.17.4 (semver)
    Create a notification for this product.
    Credits
    furbreeze
    Show details on NVD website

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              "vendor": "GitHub",
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              "url": "https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.17"
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              "url": "https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.12"
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