Threats Tagged 'ghsa-xqxv-4jc2-x56x'
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Threats Tagged 'ghsa-xqxv-4jc2-x56x'
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ZITADEL: Missing client_id binding in OIDC authorization code exchange and refresh token flows (RFC 6749 Section 4.1.3 violation) (CVE-2026-55672)CVE-2026-55672 0 Zitadel OAuth2/OIDC implementations in versions 3.0.0 through 3.4.11 and 4.0.0 through 4.15.1 omit client_id binding during authorization code exchange and refresh token flows, violating RFC 6749 Section 4.1.3. This allows an attacker who intercepts authorization codes or refresh tokens to use them with a different client identity, potentially gaining unauthorized access. Exploitation requires prior compromise or token theft in the application environment. PKCE mitigates some risks for authorization code injection but not refresh token misuse. The issue is fixed in versions 3.4.12 and 4.15.2 and later. Join the discussion | GCVE Database | 06/18/2026, 13:52:18 UTC Added: 07/16/2026, 10:36:06 UTC |
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