CVE-2026-55436
Description
Coder allows organizations to provision remote development environments via Terraform. Starting in version 2.30.0 and prior to versions 2.32.7, 2.33.8, and 2.34.2, the AI Bridge Proxy (aibridgeproxyd) created a goproxy server whose default transport set InsecureSkipVerify: true and only assigned a secure transport when an upstream proxy was configured. In the default configuration (no upstream proxy), outbound HTTPS to the Coder access URL accepted any TLS certificate. Practical exploitation requires an on-path (man-in-the-middle) position between the AI Bridge Proxy and the Coder server. Deployments where they are co-located over loopback are effectively unaffected. The fix in versions 2.32.7, 2.33.8, and 2.34.2 applies the secure transport (TLS 1.2 or higher using system root CAs) unconditionally. As a workaround, ensure the Coder access URL uses a trusted certificate and secure the network path between the AI Bridge Proxy and the Coder server (for example, loopback or mTLS).
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/coder/coder/v2Go | >= 2.34.0, < 2.34.2 | 2.34.2 |
github.com/coder/coder/v2Go | >= 2.33.0, < 2.33.8 | 2.33.8 |
github.com/coder/coder/v2Go | >= 2.30.0, < 2.32.7 | 2.32.7 |
Affected products
3- osv-coordsRange: < 0.0.20260723T184607-160000.1.1
Patches
Vulnerability mechanics
References
6- github.com/coder/coder/pull/26131nvdIssue TrackingPatchWEB
- github.com/coder/coder/security/advisories/GHSA-84rm-42xw-mx52nvdPatchVendor AdvisoryWEB
- github.com/advisories/GHSA-84rm-42xw-mx52ghsaADVISORY
- github.com/coder/coder/releases/tag/v2.32.7nvdRelease Notes
- github.com/coder/coder/releases/tag/v2.33.8nvdRelease Notes
- github.com/coder/coder/releases/tag/v2.34.2nvdRelease Notes
News mentions
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