Coder vulnerable to unauthenticated SSRF via Azure Instance Identity Endpoint

Description

Coder allows organizations to provision remote development environments via Terraform. Versions prior tp 2.24.5, 2.29.13, 2.30.8, 2.31.12, 2.32.2, and 2.33.3 are vulnerable to unauthenticated semi-blind Server-Side Request Forgery (SSRF) via the Azure instance identity endpoint (`POST /api/v2/workspaceagents/azure-instance-identity`). An external attacker can force the Coder server to issue HTTP GET requests to arbitrary internal or external hosts by submitting a crafted PKCS#7 signature. The server does not return the target's response body, but error messages in the API response reveal whether the target is reachable and what type of failure occurred. Versions 2.24.5, 2.29.13, 2.30.8, 2.31.12, 2.32.2, and 2.33.3 patch the issue. As a workaround, if the Azure identity-auth mechanism is not being used then restrict access to the corresponding endpoint (`/api/v2/workspaceagents/azure-instance-identity`) using ingress firewall and/or proxy ACLs.

Scores

EPSS (exploitation in 30 days)

0.43% · top 63% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: yes · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.

Weakness

• CWE-918: Server-Side Request Forgery (SSRF) (opens in a new tab)All about CWE-918 and its CVEs

Affected products

• coder · coder

  • affected >= 2.33.0-rc.0, < 2.33.3
  • affected >= 2.32.0-rc.0, < 2.32.2
  • affected >= 2.31.0, < 2.31.12
  • affected >= 2.30.0, < 2.30.8
  • affected >= 2.29.0, < 2.29.13
  • affected < 2.24.5

Affected packages

From reviewed advisories of the GitHub Advisory Database.

• Gogithub.com/coder/coderGHSA-686c-7vgv-v3fx (opens in a new tab)
• Gogithub.com/coder/coder/v2GHSA-686c-7vgv-v3fx (opens in a new tab)

References (9)

• https://github.com/coder/coder/security/advisories/GHSA-686c-7vgv-v3fx (opens in a new tab)x_refsource_CONFIRM
• https://github.com/coder/coder/pull/25274 (opens in a new tab)x_refsource_MISC
• https://github.com/coder/coder/commit/57b11d405f17492aa789d4b9ff33366f961a37f8 (opens in a new tab)x_refsource_MISC
• https://github.com/coder/coder/releases/tag/v2.24.5 (opens in a new tab)x_refsource_MISC
• https://github.com/coder/coder/releases/tag/v2.29.13 (opens in a new tab)x_refsource_MISC
• https://github.com/coder/coder/releases/tag/v2.30.8 (opens in a new tab)x_refsource_MISC
• https://github.com/coder/coder/releases/tag/v2.31.12 (opens in a new tab)x_refsource_MISC
• https://github.com/coder/coder/releases/tag/v2.32.2 (opens in a new tab)x_refsource_MISC
• https://github.com/coder/coder/releases/tag/v2.33.3 (opens in a new tab)x_refsource_MISC

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisory GHSA-686c-7vgv-v3fx (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-45796](https://trackcve.app/badge/CVE-2026-45796.svg)](https://trackcve.app/cve/CVE-2026-45796)

Record last updated 8 Jul 2026, 13:53 UTC.