CVE-2026-45796Coder vulnerable to unauthenticated SSRF via Azure Instance Identity Endpoint
- 6.5MediumCVSS base score
- 0.43%Exploitation in 30 daysEPSS · top 62% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By GitHub_M
- 55 days later
· 55 days later
Published
- 1 day later
· 1 day later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| NVDNVD · Analyzed | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.43% · top 62% of all CVEs (12 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.
Affected products
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
References9
- 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)
- EUVD EUVD-2026-42108 (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
[](https://cveledger.app/cve/CVE-2026-45796)Record last updated .