{"api_version":"1","generated_at":"2026-09-25T22:11:43+00:00","cve":"CVE-2026-67242","urls":{"html":"https://cve.report/CVE-2026-67242","api":"https://cve.report/api/cve/CVE-2026-67242.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-67242","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-67242"},"summary":{"title":"RabbitMQ: OAuth2 is_integer(Exp) guard skips token-expiry checks for float exp","description":"RabbitMQ is a messaging and streaming broker. From 4.2.0 until 4.2.9 and 4.3.3, OAuth2 isinteger(Exp) guard skips token-expiry checks for float exp. validatetokenexpiry/1 (lines 208-214) and expirytimestamp/1 (138-144) both guard with 'when isinteger(Exp)' and fall through to ok/never for float values. josejwt:verify validates only the signature, not exp. With float exp, no expiry validation occurs anywhere in the If the IdP emits exp as a JSON float (RFC 7519 permits fractional NumericDate), both the login-time expiry check and the mid-connection disconnect timer are silently skipped , an already-expired token is accepted, and connections never time OAuth2 backend enabled IdP emits float exp (uncommon; mainstream IdPs emit integers) Attacker possesses a previously-valid signed. This issue is fixed in versions 4.2.9 and 4.3.3.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-09-25 17:17:12","updated_at":"2026-09-25 20:17:39"},"problem_types":["CWE-613","CWE-613 CWE-613: Insufficient Session 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