Coder's OIDC email_verified type coercion bypass enables account takeover via unverified email linking
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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Configuration 1 [-]
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Github GHSA |
GHSA-75vm-6w67-gwvp | Coder's OIDC email_verified type coercion bypass enables account takeover via unverified email linking |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.610% probability within 30 days)
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ssvc
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| First Time appeared |
Coder
Coder coder |
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Coder
Coder coder |
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| Description | 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. | |
| Title | Coder's OIDC email_verified type coercion bypass enables account takeover via unverified email linking | |
| Weaknesses | CWE-287 CWE-704 |
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| Metrics |
cvssV3_1
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