{"id":"CVE-2026-84185","aliases":["DEBIAN-CVE-2026-84185","EUVD-2026-70747","SUSE-SU-2026:23702-1","SUSE-SU-2026:23722-1","UBUNTU-CVE-2026-84185","openSUSE-SU-2026:11712-1","openSUSE-SU-2026:21827-1"],"status":"published","title":"Jwcrypto: jwcrypto: general json jws kid binding bypass during jwkset verification","description":"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. This can allow an attacker with a valid key to bypass authorization checks in applications that rely on the key ID to identify specific tenants or users.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00131,"percentile":0.0272,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-347"],"published":"2026-09-03T20:46:40Z","modified":"2026-11-06T01:17:55Z","affected":[{"source":"osv","ecosystem":"Debian:13","package":"python-jwcrypto","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.6-1","1.5.6-1.1","1.5.6-1.1~deb13u1","1.5.6-1.2"]},{"source":"osv","ecosystem":"Debian:14","package":"python-jwcrypto","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.6-1","1.5.6-1.1","1.5.6-1.1~deb13u1","1.5.6-1.2"]},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 16.0","package":"python-jwcrypto","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.6-160000.4.1"}]}],"bundled":2},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server for SAP applications 16.0","package":"python-jwcrypto","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.6-160000.4.1"}]}],"bundled":2},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 16.0","package":"python-jwcrypto","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.6-160000.4.1"}]}],"bundled":2},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server for SAP applications 16.0","package":"python-jwcrypto","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.6-160000.4.1"}]}],"bundled":2},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"python-jwcrypto","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.1-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"python-jwcrypto","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.3.2-1","0.4.2-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"python-jwcrypto","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.0-1","0.6.0-2"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"python-jwcrypto","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.8.0-1","1.0.0-2"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"python-jwcrypto","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.0-1","1.5.4-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"python-jwcrypto","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.6-1","1.5.6-1.1","1.5.6-1.2"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"python-jwcrypto","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.6-1"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"python-jwcrypto","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.0-1.1"}]}],"bundled":3},{"source":"osv","ecosystem":"openSUSE:Leap 16.0","package":"python-jwcrypto","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.6-160000.4.1"}]}],"bundled":2}],"products":[{"vendor":"red hat","product":"red hat ansible automation platform 2"},{"vendor":"red hat","product":"red hat enterprise linux 10"},{"vendor":"red hat","product":"red hat enterprise linux 7"},{"vendor":"red hat","product":"red hat enterprise linux 8"},{"vendor":"red hat","product":"red hat enterprise linux 9"},{"vendor":"red hat","product":"red hat openshift ai (rhoai)"},{"vendor":"red hat","product":"red hat openstack platform 16.2"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-84185","tags":["vdb-entry","x_refsource_REDHAT","report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2526729","tags":["issue-tracking","x_refsource_REDHAT","report"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-84185","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-202623702-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1277639","tags":["report"]},{"url":"https://bugzilla.suse.com/1278707","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2026-80179","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-84185","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-202623722-1/","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-84185","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-84185","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2024-28102","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-84185","title":"Jwcrypto: jwcrypto: general json jws kid binding bypass during jwkset verification","description":"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. This can allow an attacker with a valid key to bypass authorization checks in applications that rely on the key ID to identify specific tenants or users.","status":"published","published":"2026-09-03T20:46:40.788Z","modified":"2026-11-06T01:05:42.353Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-347"],"updated_at":"2026-11-06T02:55:55.947181Z"}],"euvd":[{"id":"EUVD-2026-70747","description":"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. This can allow an attacker with a valid key to bypass authorization checks in applications that rely on the key ID to identify specific tenants or users.","status":"published","published":"2026-09-03T20:46:40Z","modified":"2026-11-06T01:05:42Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N","level":"medium"}],"updated_at":"2026-11-06T02:02:53.341523Z"}],"nvd":[{"id":"CVE-2026-84185","description":"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. This can allow an attacker with a valid key to bypass authorization checks in applications that rely on the key ID to identify specific tenants or users.","status":"published","published":"2026-09-03T21:17:22.687Z","modified":"2026-11-06T01:17:55.197Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-347"],"updated_at":"2026-11-06T06:59:05.303911Z"}],"osv":[{"id":"DEBIAN-CVE-2026-84185","description":"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. This can allow an attacker with a valid key to bypass authorization checks in applications that rely on the key ID to identify specific tenants or users.","status":"published","published":"2026-09-03T21:17:22.687Z","modified":"2026-10-01T03:03:43.870686655Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:46:04.577397Z"},{"id":"UBUNTU-CVE-2026-84185","description":"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. This can allow an attacker with a valid key to bypass authorization checks in applications that rely on the key ID to identify specific tenants or users.","status":"published","published":"2026-09-03T21:17:00Z","modified":"2026-10-17T13:01:12.262193017Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T16:57:22.213888Z"},{"id":"openSUSE-SU-2026:11712-1","title":"python313-jwcrypto-1.6.0-1.1 on GA media","description":"These are all security issues fixed in the python313-jwcrypto-1.6.0-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-09-07T00:00:00Z","modified":"2026-09-08T09:00:05.298753442Z","updated_at":"2026-11-02T16:58:39.516824Z"},{"id":"openSUSE-SU-2026:21827-1","title":"Security update for python-jwcrypto","description":"This update for python-jwcrypto fixes the following issues:\n\n- CVE-2026-80179: denial of service via malformed JWE tokens (bsc#1277639).\n- CVE-2026-84185: general JSON JWS kid binding bypass during JWKSet verification (bsc#1278707).\n","status":"published","published":"2026-09-10T09:38:19Z","modified":"2026-09-12T18:23:08.165459498Z","updated_at":"2026-11-02T16:58:42.426393Z"},{"id":"SUSE-SU-2026:23702-1","title":"Security update for python-jwcrypto","description":"This update for python-jwcrypto fixes the following issues:\n\n- CVE-2026-80179: denial of service via malformed JWE tokens (bsc#1277639).\n- CVE-2026-84185: general JSON JWS kid binding bypass during JWKSet verification (bsc#1278707).\n","status":"published","published":"2026-09-10T09:38:01Z","modified":"2026-09-29T18:23:12.595709299Z","updated_at":"2026-11-02T15:54:03.991985Z"},{"id":"SUSE-SU-2026:23722-1","title":"Security update for python-jwcrypto","description":"This update for python-jwcrypto fixes the following issues:\n\n- CVE-2026-80179: denial of service via malformed JWE tokens (bsc#1277639).\n- CVE-2026-84185: general JSON JWS kid binding bypass during JWKSet verification (bsc#1278707).\n","status":"published","published":"2026-09-10T09:38:01Z","modified":"2026-09-29T18:23:13.299687378Z","updated_at":"2026-11-02T15:54:03.991985Z"}]}}