CVE-2026-55076

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, Coder's OIDC callback checked `email_verified` with a direct Go `bool` type assertion. When an IdP returned the claim as a non-boolean (for example the string `"false"`) or omitted it, the assertion failed open and the email was treated as verified. Combined with an unconditional email-based account fallback, this enabled account takeover. The fix in versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2 coerces `email_verified` across bool, string and numeric types (fail-closed) and blocks the email fallback when the matched user already has a different linked IdP subject. As a workaround, ensure the IdP returns `email_verified` as a native JSON boolean. The email-fallback linking issue has no configuration workaround; upgrading is required.

• CWE-287
• CWE-704

• https://github.com/coder/coder/pull/25712Issue Tracking, Patch
• https://github.com/coder/coder/pull/25713Issue Tracking, Patch
• https://github.com/coder/coder/releases/tag/v2.29.17Release Notes
• https://github.com/coder/coder/releases/tag/v2.32.7Release Notes
• 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-75vm-6w67-gwvpPatch, Vendor Advisory

Published

Jul 7, 2026

Last Modified

Jul 8, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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