TokenTalks
← Back to feed

Update:

[CRITICAL] GHSA-6x44-w3xg-hqqf: Coder: PKCS#7 signature bypass in Azure instance identity allows unauthenticated agent token theft

GitHub Security Advisory·Security·SecurityFix·5/19/2026

## Summary `azureidentity.Validate()` verifies that the PKCS#7 signer certificate chains to a trusted Azure CA but never verifies the PKCS#7 signature itself. An attacker can embed a legitimate Azure certificate alongside arbitrary content e.g. `{"vmId":"<target>"}` and the forged `vmId` will be ac

Why it mattersgithub.com/coder/coder released an update. Review the changelog for relevant changes.

Who should careTeams using github.com/coder/coder.

github.com/coder/coder
View original source ↗

Source payload preview

{
  "ghsaId": "GHSA-6x44-w3xg-hqqf",
  "summary": "Coder: PKCS#7 signature bypass in Azure instance identity allows unauthenticated agent token theft",
  "severity": "CRITICAL",
  "updatedAt": "2026-05-19T20:04:16Z",
  "references": [
    {
      "url": "https://github.com/coder/coder/security/advisories/GHSA-6x44-w3xg-hqqf"
    },
    {
      "url": "https://github.com/coder/coder/pull/25286"
    },
    {
      "url": "https://github.com/coder/coder/releases/tag/v2.24.5"
    },
    {
      "url": "https://github.com/coder/coder/releases/tag/v2.29.13"
    },
    {
      "url": "https://github.com/coder/coder/releases/tag/v2.30.8"
    },
    {
      "url": "https://github.com/coder/coder/releases/tag/v2.31.12"
    },
    {
      "url": "https://github.com/coder/coder/releases/tag/v2.32.2"