Junglewise Threat Intelligence

CVE-2026-55077: Coder improper authorization in password reset endpoint

CVE-2026-55077 · Severity: high · CVSS 7.2 · Published 2026-07-07

Technologies: Coder. Vendors: Go, Coder.

Executive brief

Coder, a platform for managing remote development environments, contains a vulnerability that allows users with administrative privileges to reset the passwords of top-level 'owner' accounts. By resetting an owner's password, a less-privileged administrator could take full control of the entire Coder deployment and all associated data. This risk is highest for organizations that grant administrative roles to individuals who should not have full system ownership.

Technical details

An improper authorization vulnerability exists in Coder's `PUT /api/v2/users/{user}/password` endpoint. Prior to the fix, the endpoint only checked for the `ActionUpdatePersonal` permission, which is held by the `user-admin` role, but failed to implement a guard preventing these admins from targeting accounts with the `owner` role. Additionally, the current password check is bypassed during administrative resets. A malicious or compromised `user-admin` account can exploit this to reset an owner's password and authenticate as them, gaining full control over the Coder instance. The issue is resolved in versions 2.29.17, 2.32.7, 2.33.8, and 2.34.2 by enforcing a check that prevents non-owners from resetting owner passwords.

Affected products

  • Coder Coder < 2.29.17, >= 2.30.0 < 2.32.7, >= 2.33.0 < 2.33.8, >= 2.34.0 < 2.34.2

Timeline

  • 2026-05-27: other: Fix pull request submitted
  • 2026-06-11: patched: Security releases v2.32.7 and v2.33.8 published
  • 2026-06-12: patched: Security release v2.29.17 published
  • 2026-07-07: disclosed: CVE-2026-55077 published

References

Related threats