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    1 vulnerability by ossf

    CVE-2025-61926 (GCVE-0-2025-61926)

    Vulnerability from cvelistv5 – Published: 2025-10-09 21:20 – Updated: 2025-10-16 18:13
    VLAI
    Title
    Allstar Reviewbot has Authentication Bypass via Hard-coded Webhook Secret
    Summary
    Allstar is a GitHub App to set and enforce security policies. In versions prior to 4.5, a vulnerability in Allstar’s Reviewbot component caused inbound webhook requests to be validated against a hard-coded, shared secret. The value used for the secret token was compiled into the Allstar binary and could not be configured at runtime. In practice, this meant that every deployment using Reviewbot would validate requests with the same secret unless the operator modified source code and rebuilt the component - an expectation that is not documented and is easy to miss. All Allstar releases prior to v4.5 that include the Reviewbot code path are affected. Deployments on v4.5 and later are not affected. Those who have not enabled or exposed the Reviewbot endpoint are not exposed to this issue.
    Severity
    4.6 (Medium)
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-453 - Insecure Default Variable Initialization
    • CWE-798 - Use of Hard-coded Credentials
    Assigner
    References
    Impacted products
    Vendor Product Version
    ossf allstar Affected: < 0.0.0-20250721181116-e004ecb540d6
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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