7.4

CVE-2026-55076

Coder's OIDC email_verified type coercion bypass enables account takeover via unverified email linking

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Coder ≫ Coder SwPlatformgo Version < 2.29.17
Coder ≫ Coder SwPlatformgo Version >= 2.30.0 < 2.32.7
Coder ≫ Coder SwPlatformgo Version >= 2.33.0 < 2.33.8
Coder ≫ Coder SwPlatformgo Version >= 2.34.0 < 2.34.2
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.31% 0.229
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 7.4 2.2 5.2
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE-287 Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

CWE-704 Incorrect Type Conversion or Cast

The product does not correctly convert an object, resource, or structure from one type to a different type.

https://github.com/coder/coder/releases/tag/v2.32.7
Release Notes
https://github.com/coder/coder/releases/tag/v2.33.8
Release Notes
https://github.com/coder/coder/releases/tag/v2.34.2
Release Notes
https://github.com/coder/coder/pull/25712
Patch
Issue Tracking
https://github.com/coder/coder/pull/25713
Patch
Issue Tracking
https://github.com/coder/coder/releases/tag/v2.29.17
Release Notes
https://github.com/coder/coder/security/advisories/GHSA-75vm-6w67-gwvp
Patch
Vendor Advisory