CVE-2026-84185

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{"bugzilla": {"description": "jwcrypto: jwcrypto: General JSON JWS kid binding bypass during JWKSet verification", "id": "2526729", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2526729"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.9", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N", "status": "draft"}, "cwe": "CWE-347", "details": ["A flaw was found in the jwcrypto library, which is used for implementing Javascript Object Signing and Encryption (JOSE) standards. The issue occurs when the library verifies a General JSON Serialization JWS using a set of keys. Due to a coding error, the library fails to correctly identify the specific key ID (kid) and may instead accept a signature made by any valid key in the set. 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"rhoai/odh-feature-server-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Not affected", "package_name": "rhoai/odh-kserve-storage-initializer-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openstack:16.2", "fix_state": "Not affected", "package_name": "rhosp-rhel8/openstack-mistral-executor", "product_name": "Red Hat OpenStack Platform 16.2"}, {"cpe": "cpe:/a:redhat:openstack:16.2", "fix_state": "Not affected", "package_name": "rhosp-rhel8/openstack-nova-api", "product_name": "Red Hat OpenStack Platform 16.2"}, {"cpe": "cpe:/a:redhat:openstack:16.2", "fix_state": "Not affected", "package_name": "rhosp-rhel8/openstack-nova-compute-ironic", "product_name": "Red Hat OpenStack Platform 16.2"}, {"cpe": "cpe:/a:redhat:openstack:16.2", "fix_state": "Not affected", "package_name": "rhosp-rhel8/openstack-novajoin-base", "product_name": "Red Hat OpenStack Platform 16.2"}, {"cpe": "cpe:/a:redhat:openstack:16.2", "fix_state": "Not affected", "package_name": "rhosp-rhel8/openstack-novajoin-notifier", "product_name": "Red Hat OpenStack Platform 16.2"}, {"cpe": "cpe:/a:redhat:openstack:16.2", "fix_state": "Not affected", "package_name": "rhosp-rhel8/openstack-novajoin-server", "product_name": "Red Hat OpenStack Platform 16.2"}, {"cpe": "cpe:/a:redhat:openstack:16.2", "fix_state": "Not affected", "package_name": "rhosp-rhel8/openstack-tempest", "product_name": "Red Hat OpenStack Platform 16.2"}, {"cpe": "cpe:/a:redhat:openstack:16.2", "fix_state": "Not affected", "package_name": "rhosp-rhel8/openstack-tripleoclient", "product_name": "Red Hat OpenStack Platform 16.2"}], "public_date": "2026-09-03T20:32:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-84185\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-84185"], "statement": "The Red Hat Product Security team has assessed the severity of this vulnerability as Moderate, given that exploitation requires the attacker to already possess a valid signing key within the trusted JWKSet. Successful exploitation allows an attacker to bypass key binding and potentially impersonate other identities or tenants. The vulnerability's root cause is an incorrect type check in the JWS verification logic when handling General JSON Serialization.", "threat_severity": "Moderate"}

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