{"cve":"CVE-2026-55076","nvd":{"published":"2026-07-07T23:16:55.237","modified":"2026-07-08T19:46:04.560","status":"Analyzed","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","score":7.4},"cwes":["CWE-287","CWE-704"],"references":["https://github.com/coder/coder/pull/25712","https://github.com/coder/coder/pull/25713","https://github.com/coder/coder/releases/tag/v2.29.17","https://github.com/coder/coder/releases/tag/v2.32.7","https://github.com/coder/coder/releases/tag/v2.33.8"],"products":["coder:coder"],"source":"nvd","synced_at":"2026-10-19T22:42:16.820116992+00:00"},"epss":{"cve":"CVE-2026-55076","score":0.0061,"percentile":0.49231,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-75vm-6w67-gwvp","url":"https://osv.dev/vulnerability/GHSA-75vm-6w67-gwvp","summary":"Coder's OIDC email_verified type coercion bypass enables account takeover via unverified email linking","modified":"2026-07-07T16:11:17.593363703Z","packages":[{"ecosystem":"Go","name":"github.com/coder/coder/v2","purl":"pkg:golang/github.com/coder/coder/v2","ranges":[">=2.34.0 <2.34.2"],"fixed":["2.34.2"]},{"ecosystem":"Go","name":"github.com/coder/coder/v2","purl":"pkg:golang/github.com/coder/coder/v2","ranges":[">=2.33.0 <2.33.8"],"fixed":["2.33.8"]},{"ecosystem":"Go","name":"github.com/coder/coder/v2","purl":"pkg:golang/github.com/coder/coder/v2","ranges":[">=2.30.0 <2.32.7"],"fixed":["2.32.7"]},{"ecosystem":"Go","name":"github.com/coder/coder/v2","purl":"pkg:golang/github.com/coder/coder/v2","ranges":["<2.29.17"],"fixed":["2.29.17"]}]},{"id":"GO-2026-5907","url":"https://osv.dev/vulnerability/GO-2026-5907","summary":"Coder's OIDC email_verified type coercion bypass enables account takeover via unverified email linking in github.com/coder/coder","modified":"2026-07-07T16:00:42.744159851Z","packages":[{"ecosystem":"Go","name":"github.com/coder/coder","purl":"pkg:golang/github.com/coder/coder","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"github.com/coder/coder/v2","purl":"pkg:golang/github.com/coder/coder/v2","ranges":["<2.29.17",">=2.30.0 <2.32.7",">=2.33.0 <2.33.8",">=2.34.0 <2.34.2"],"fixed":["2.29.17","2.32.7","2.33.8","2.34.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}