Vulnerability Description
Coder allows organizations to provision remote development environments via Terraform. Starting in version 2.33.0 and prior to versions 2.33.8 and 2.34.2, AI Bridge provider handlers read request bodies with `io.ReadAll` without a maximum size so an authenticated user with AI Bridge access could send an arbitrarily large body and exhaust memory. Exploitation requires authenticated access to the AI Bridge endpoints and the impact is limited to availability (denial of service). Versions 2.33.8 and 2.34.2 patch the issue. No known workarounds are available.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Coder | Coder | >= 2.33.0, < 2.33.8 |
Related Weaknesses (CWE)
References
- https://github.com/coder/coder/pull/26164Issue TrackingPatch
- https://github.com/coder/coder/releases/tag/v2.33.8Release Notes
- https://github.com/coder/coder/releases/tag/v2.34.2Release Notes
- https://github.com/coder/coder/security/advisories/GHSA-f5vp-w269-392gPatchVendor Advisory
FAQ
What is CVE-2026-55434?
CVE-2026-55434 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Coder allows organizations to provision remote development environments via Terraform. Starting in version 2.33.0 and prior to versions 2.33.8 and 2.34.2, AI Bridge provider handlers read request bodi...
How severe is CVE-2026-55434?
CVE-2026-55434 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-55434?
Check the references section above for vendor advisories and patch information. Affected products include: Coder Coder.