Common Weakness Enumeration

CWE-863

Allowed-with-Review

Incorrect Authorization

Abstraction: Class · Status: Incomplete

API response cwe.mitre.org

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

5491 vulnerabilities reference this CWE, most recent first.

CVE-2026-41248 (GCVE-0-2026-41248)

Vulnerability from cvelistv5 – Published: 2026-04-24 21:04 – Updated: 2026-04-27 13:46
VLAI
Title
Official Clerk JavaScript SDKs: Middleware-based route protection bypass
Summary
Clerk JavaScript is the official JavaScript repository for Clerk authentication. createRouteMatcher in @clerk/nextjs, @clerk/nuxt, and @clerk/astro can be bypassed by certain crafted requests, allowing them to skip middleware gating and reach downstream handlers. This vulnerability is fixed in @clerk/astro 1.5.7, 2.17.10, and 3.0.15; @clerk/nextjs 5.7.6, 6.39.2, and 7.2.1; @clerk/nuxt 1.13.28 and 2.2.2; and @clerk/shared 2.22.1, 3.47.4, anc 4.8.1
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
clerk astro Affected: >= 0.0.1, < 1.5.7
Affected: >= 2.0.0-snapshot.v20241206174604, <= 2.17.9
Affected: >= 3.0.0, < 3.0.15
Create a notification for this product.
clerk nextjs Affected: >= 5.0.0, < 5.7.6
Affected: >= 6.0.0-snapshot.vb87a27f, < 6.39.2
Affected: >= 7.0.0, < 7.2.1
Create a notification for this product.
clerk nuxt Affected: >= 1.1.0, < 1.13.28
Affected: >= 2.0.0, < 2.2.2
Create a notification for this product.
clerk shared Affected: >= 2.20.17, < 2.22.1
Affected: >= 3.0.0-canary.v20250225091530, < 3.47.4
Affected: >= 4.0.0, < 4.8.1
Create a notification for this product.
Show details on NVD website
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CVE-2026-41235 (GCVE-0-2026-41235)

Vulnerability from cvelistv5 – Published: 2026-06-04 17:50 – Updated: 2026-06-08 18:29
VLAI
Title
Froxlor has an authorization bypass in FTP shell assignment via missing server-side `available_shells` enforcement
Summary
Froxlor is open source server administration software. Version 2.3.6 lets administrators configure `system.available_shells` as the approved shell list that customers may assign to FTP users. However, the server-side FTP account handlers do not enforce that whitelist when processing add or edit requests. As a result, an authenticated customer with shell delegation enabled can submit an arbitrary shell such as `/bin/bash` even when the panel UI only offers more restricted choices. In deployments that use the default `nssextrausers` integration, the attacker-controlled shell is then propagated into the system account database, leading to real host shell access. Version 2.3.7 fixes the issue.
Severity
8.6 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version
froxlor froxlor Affected: = 2.3.6
Create a notification for this product.
Show details on NVD website
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CVE-2026-41233 (GCVE-0-2026-41233)

Vulnerability from cvelistv5 – Published: 2026-04-23 04:00 – Updated: 2026-04-23 12:26
VLAI
Title
Froxlor has a Reseller Domain Quota Bypass via Unvalidated adminid Parameter in Domains.add()
Summary
Froxlor is open source server administration software. Prior to version 2.3.6, in `Domains.add()`, the `adminid` parameter is accepted from user input and used without validation when the calling reseller does not have the `customers_see_all` permission. This allows a reseller to attribute newly created domains to any other admin, bypassing their own domain quota (since the wrong admin's `domains_used` counter is incremented) and potentially exhausting another admin's quota. Version 2.3.6 fixes the issue.
Severity
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version
froxlor froxlor Affected: < 2.3.6
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-41232 (GCVE-0-2026-41232)

Vulnerability from cvelistv5 – Published: 2026-04-23 03:54 – Updated: 2026-04-23 14:50
VLAI
Title
Froxlor has an Email Sender Alias Domain Ownership Bypass via Wrong Array Index that Allows Cross-Customer Email Spoofing
Summary
Froxlor is open source server administration software. Prior to version 2.3.6, in `EmailSender::add()`, the domain ownership validation for full email sender aliases uses the wrong array index when splitting the email address, passing the local part instead of the domain to `validateLocalDomainOwnership()`. This causes the ownership check to always pass for non-existent "domains," allowing any authenticated customer to add sender aliases for email addresses on domains belonging to other customers. Postfix's `sender_login_maps` then authorizes the attacker to send emails as those addresses. Version 2.3.6 fixes the issue.
Severity
5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version
froxlor froxlor Affected: < 2.3.6
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-41191 (GCVE-0-2026-41191)

Vulnerability from cvelistv5 – Published: 2026-04-21 17:09 – Updated: 2026-04-21 19:07
VLAI
Title
FreeScout's signature only mailbox permission allows unauthorized mailbox chat setting changes
Summary
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, `MailboxesController::updateSave()` persists `chat_start_new` outside the allowed-field filter. A user with only the mailbox `sig` permission sees only the signature field in the UI, but can still change the hidden mailbox-wide chat setting via direct POST. Version 1.8.215 fixes the vulnerability.
Severity
7.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-41190 (GCVE-0-2026-41190)

Vulnerability from cvelistv5 – Published: 2026-04-21 17:06 – Updated: 2026-04-21 17:48
VLAI
Title
FreeScout has assigned-only visibility bypass via save_draft that allows hidden conversation draft injection
Summary
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, when `APP_SHOW_ONLY_ASSIGNED_CONVERSATIONS` is enabled, direct conversation view correctly blocks users who are neither the assignee nor the creator. The `save_draft` AJAX path is weaker. A direct POST can create a draft inside a conversation that is hidden in the UI. Version 1.8.215 fixes the vulnerability.
Severity
7.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-41189 (GCVE-0-2026-41189)

Vulnerability from cvelistv5 – Published: 2026-04-21 17:04 – Updated: 2026-04-21 17:37
VLAI
Title
FreeScout has assigned-only visibility bypass that allows editing hidden customer-authored threads
Summary
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, customer-thread editing is authorized through `ThreadPolicy::edit()`, which checks mailbox access but does not apply the assigned-only restriction from `ConversationPolicy`. A user who cannot view a conversation can still load and edit customer-authored threads inside it. Version 1.8.215 fixes the vulnerability.
Severity
7.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-41174 (GCVE-0-2026-41174)

Vulnerability from cvelistv5 – Published: 2026-04-30 20:20 – Updated: 2026-05-04 13:26
VLAI
Title
Traefik Kubernetes CRD allows unauthorized cross-namespace middleware binding
Summary
Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.43, 3.6.14, and 3.7.0-rc.2, there is a potential vulnerability in Traefik's Kubernetes CRD provider cross-namespace isolation enforcement. When providers.kubernetesCRD.allowCrossNamespace=false, Traefik correctly rejects direct cross-namespace middleware references from IngressRoute objects, but fails to apply the same restriction to middleware references nested inside a Chain middleware's spec.chain.middlewares[]. An actor with permission to create or update Traefik CRDs in their own namespace can exploit this to cause Traefik to resolve and apply middleware objects from another namespace, bypassing the documented isolation boundary. This issue has been patched in versions 2.11.43, 3.6.14, and 3.7.0-rc.2.
Severity
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-863 - Incorrect Authorization
  • CWE-653 - Improper Isolation or Compartmentalization
Assigner
References
Impacted products
Vendor Product Version
traefik traefik Affected: < 2.11.43
Affected: >= 3.7.0-ea.1, < 3.7.0-rc.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-41131 (GCVE-0-2026-41131)

Vulnerability from cvelistv5 – Published: 2026-04-21 23:38 – Updated: 2026-04-22 18:14
VLAI
Title
OpenFGA has Improper Policy Enforcement
Summary
OpenFGA is an authorization/permission engine built for developers. Prior to version 1.14.1, in specific scenarios, models using conditions with caching enabled can result in two different check requests producing the same cache key. This could result in OpenFGA reusing an earlier cached result for a subsequent request. The preconditions for vulnerability are the model having relations which rely on condition evaluation and the user having caching enabled. OpenFGA v1.14.1 contains a fix.
Severity
5 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-863 - Incorrect Authorization
  • CWE-706 - Use of Incorrectly-Resolved Name or Reference
Assigner
References
Impacted products
Vendor Product Version
openfga openfga Affected: < 1.14.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-41068 (GCVE-0-2026-41068)

Vulnerability from cvelistv5 – Published: 2026-04-24 03:14 – Updated: 2026-04-24 16:22
VLAI
Title
Kyverno: Cross-Namespace Read Bypasses RBAC Isolation (CVE-2026-22039 Incomplete Fix)
Summary
Kyverno is a policy engine designed for cloud native platform engineering teams. The patch for CVE-2026-22039 fixed cross-namespace privilege escalation in Kyverno's `apiCall` context by validating the `URLPath` field. However, the ConfigMap context loader has the identical vulnerability — the `configMap.namespace` field accepts any namespace with zero validation, allowing a namespace admin to read ConfigMaps from any namespace using Kyverno's privileged service account. This is a complete RBAC bypass in multi-tenant Kubernetes clusters. An updated fix is available in version 1.17.2.
Severity
7.7 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version
kyverno kyverno Affected: < 1.17.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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Mitigation
Architecture and Design
  • Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) [REF-229] to enforce the roles at the appropriate boundaries.
  • Note that this approach may not protect against horizontal authorization, i.e., it will not protect a user from attacking others with the same role.
Mitigation
Architecture and Design

Ensure that access control checks are performed related to the business logic. These checks may be different than the access control checks that are applied to more generic resources such as files, connections, processes, memory, and database records. For example, a database may restrict access for medical records to a specific database user, but each record might only be intended to be accessible to the patient and the patient's doctor [REF-7].

Mitigation MIT-4.4
Architecture and Design

Strategy: Libraries or Frameworks

  • Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
  • For example, consider using authorization frameworks such as the JAAS Authorization Framework [REF-233] and the OWASP ESAPI Access Control feature [REF-45].
Mitigation
Architecture and Design
  • For web applications, make sure that the access control mechanism is enforced correctly at the server side on every page. Users should not be able to access any unauthorized functionality or information by simply requesting direct access to that page.
  • One way to do this is to ensure that all pages containing sensitive information are not cached, and that all such pages restrict access to requests that are accompanied by an active and authenticated session token associated with a user who has the required permissions to access that page.
Mitigation
System Configuration Installation

Use the access control capabilities of your operating system and server environment and define your access control lists accordingly. Use a "default deny" policy when defining these ACLs.

No CAPEC attack patterns related to this CWE.

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