Auth bypass in Coder

CVE-2026-55429

Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, `UpsertWorkspaceApp` overwrites an existing app's `agent_id` on a primary-key conflict and `insert…

Vulnerability class: IDOR (Insecure Direct Object Reference)

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N.

Affected products

  • Coder — versions >= 2.34.0, < 2.34.2, >= 2.33.0, < 2.33.8, >= 2.30.0, < 2.32.7

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-55429?
CVE-2026-55429 is a high-severity vulnerability in Coder, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.7/10. Published 2026-07-08.
How severe is CVE-2026-55429?
High severity. CVSS v3 base score is 8.7 out of 10.