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    2 vulnerabilities by janhq

    CVE-2026-66005 (GCVE-0-2026-66005)

    Vulnerability from nvd – Published: 2026-07-24 14:57 – Updated: 2026-07-25 10:30 X_Open Source
    VLAI
    Title
    Jan Local API Server CORS Origin Reflection via 0.0.0.0 Binding
    Summary
    Jan through 0.8.4, fixed in commit 3e1c1e7, contains a CORS misconfiguration vulnerability in its local API server that allows network-adjacent attackers to bypass trusted host restrictions by exploiting the server's replacement of user-configured trusted hosts with a wildcard that reflects arbitrary origins with credentials. Attackers on the local network or using DNS rebinding can reach the unauthenticated OpenAI-compatible API to perform inference, enumerate models, invoke MCP tools, and read cross-origin responses.
    Severity
    5.3 (Medium)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
    6.3 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-183 - Permissive List of Allowed Inputs
    • CWE-942 - Permissive Cross-domain Security Policy with Untrusted Domains
    Assigner
    References
    Impacted products
    Vendor Product Version
    janhq jan Affected: 0 , ≤ 0.8.4 (semver)
    Unaffected: 3e1c1e724f696620d89bb4a9cc18a380e0753757 (git)
    		Create a notification for this product.
    Date Public
    2026-07-19 00:00
    Credits
    George Chen
    Show details on NVD website
    To clipboard 

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    CVE-2026-66005 (GCVE-0-2026-66005)

    Vulnerability from cvelistv5 – Published: 2026-07-24 14:57 – Updated: 2026-07-25 10:30 X_Open Source
    VLAI
    Title
    Jan Local API Server CORS Origin Reflection via 0.0.0.0 Binding
    Summary
    Jan through 0.8.4, fixed in commit 3e1c1e7, contains a CORS misconfiguration vulnerability in its local API server that allows network-adjacent attackers to bypass trusted host restrictions by exploiting the server's replacement of user-configured trusted hosts with a wildcard that reflects arbitrary origins with credentials. Attackers on the local network or using DNS rebinding can reach the unauthenticated OpenAI-compatible API to perform inference, enumerate models, invoke MCP tools, and read cross-origin responses.
    Severity
    5.3 (Medium)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
    6.3 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-183 - Permissive List of Allowed Inputs
    • CWE-942 - Permissive Cross-domain Security Policy with Untrusted Domains
    Assigner
    References
    Impacted products
    Vendor Product Version
    janhq jan Affected: 0 , ≤ 0.8.4 (semver)
    Unaffected: 3e1c1e724f696620d89bb4a9cc18a380e0753757 (git)
    		Create a notification for this product.
    Date Public
    2026-07-19 00:00
    Credits
    George Chen
    Show details on NVD website
    To clipboard 

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