CVE-2026-45796
MEDIUM
6.5
CVSS 3.1
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.
Metadata
Severity & Metrics
6.5
MEDIUM CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Affected products (1)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| coder | coder | — | >= 2.33.0-rc.0, < 2.33.3, >= 2.32.0-rc.0, < 2.32.2, >= 2.31.0, < 2.31.12, >= 2.30.0, < 2.30.8 … |
Weakness (CWE)
| CWE | Source | Description |
|---|---|---|
| CWE-918 | cna | CWE-918: Server-Side Request Forgery (SSRF) |
CVSS scores (1)
| Score | Severity | Version | Source | Vector |
|---|---|---|---|---|
| 6.5 | MEDIUM | 3.1 | cna | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
References (9)
- https://github.com/coder/coder/security/advisories/GHSA-686c-7vgv-v3fx https://github.com/coder/coder/security/advisories/GHSA-686c-7vgv-v3fx
- https://github.com/coder/coder/pull/25274 https://github.com/coder/coder/pull/25274
- https://github.com/coder/coder/commit/57b11d405f17492aa789d4b9ff33366f961a37f8 https://github.com/coder/coder/commit/57b11d405f17492aa789d4b9ff33366f961a37f8
- https://github.com/coder/coder/releases/tag/v2.24.5 https://github.com/coder/coder/releases/tag/v2.24.5
- https://github.com/coder/coder/releases/tag/v2.29.13 https://github.com/coder/coder/releases/tag/v2.29.13
- https://github.com/coder/coder/releases/tag/v2.30.8 https://github.com/coder/coder/releases/tag/v2.30.8
- https://github.com/coder/coder/releases/tag/v2.31.12 https://github.com/coder/coder/releases/tag/v2.31.12
- https://github.com/coder/coder/releases/tag/v2.32.2 https://github.com/coder/coder/releases/tag/v2.32.2
- https://github.com/coder/coder/releases/tag/v2.33.3 https://github.com/coder/coder/releases/tag/v2.33.3