---
id: CVE-2025-61926
title: Allstar is a GitHub App to set and enforce security policies
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 …
severity: none
cwe:
  - CWE-453
  - CWE-798
published: '2025-10-09'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T13:10:00.200'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-61926'
references:
  - url: >-
      https://github.com/ossf/allstar/blob/294ae985cc2facd0918e8d820e4196021aa0b914/pkg/reviewbot/reviewbot.go#L59
    label: security-advisories@github.com
  - url: >-
      https://github.com/ossf/allstar/commit/e004ecb540d63ca6f5b1689b41af6c0040a82c73
    label: security-advisories@github.com
  - url: 'https://github.com/ossf/allstar/pull/713'
    label: security-advisories@github.com
  - url: 'https://github.com/ossf/allstar/security/advisories/GHSA-33f4-mjch-7fpr'
    label: security-advisories@github.com
  - url: >-
      https://github.com/ossf/allstar/blob/294ae985cc2facd0918e8d820e4196021aa0b914/pkg/reviewbot/reviewbot.go#L59
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://github.com/ossf/allstar/security/advisories/GHSA-33f4-mjch-7fpr'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00395
epssPercentile: 0.31614
ingestedAt: '2026-10-08T13:42:55.066Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.