{"id":"CVE-2026-80179","aliases":["AZL-98337","DEBIAN-CVE-2026-80179","EUVD-2026-67278","SUSE-SU-2026:23702-1","SUSE-SU-2026:23722-1","UBUNTU-CVE-2026-80179","openSUSE-SU-2026:11712-1","openSUSE-SU-2026:21827-1"],"status":"published","title":"Jwcrypto: jwcrypto: denial of service via malformed jwe tokens","description":"A flaw was found in jwcrypto. A remote attacker can send a specially crafted JSON Web Encryption (JWE) token containing numerous period delimiters. This malformed token can force the JWE.deserialize() function to allocate excessive memory, leading to a MemoryError. This issue results in a denial of service (DoS) for services that process untrusted JWE values.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00303,"percentile":0.23327,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-770"],"published":"2026-08-27T21:14:23Z","modified":"2026-11-11T08:45:44Z","affected":[{"source":"osv","ecosystem":"Azure Linux:3","package":"python-jwcrypto","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.6.0-9"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"python-jwcrypto","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.0-1","1.1.0-1+deb12u1","1.5.4-1","1.5.6-1","1.5.6-1.1","1.5.6-1.1~deb13u1","1.5.6-1.2"]},{"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 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/errata/RHSA-2026:98061","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-80179","tags":["vdb-entry","x_refsource_REDHAT","report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2524147","tags":["issue-tracking","x_refsource_REDHAT","report"]},{"url":"https://github.com/latchset/jwcrypto/security/advisories/GHSA-96rv-c4vc-h4f4","tags":["exploit","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80179","tags":["web"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-80179","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-2026-80179","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80179","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2024-28102","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-80179","title":"Jwcrypto: jwcrypto: denial of service via malformed jwe tokens","description":"A flaw was found in jwcrypto. A remote attacker can send a specially crafted JSON Web Encryption (JWE) token containing numerous period delimiters. This malformed token can force the JWE.deserialize() function to allocate excessive memory, leading to a MemoryError. This issue results in a denial of service (DoS) for services that process untrusted JWE values.","status":"published","published":"2026-08-27T21:14:23.428Z","modified":"2026-11-11T08:45:44.848Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-770"],"updated_at":"2026-11-11T09:25:46.087816Z"}],"euvd":[{"id":"EUVD-2026-67278","description":"A flaw was found in jwcrypto. A remote attacker can send a specially crafted JSON Web Encryption (JWE) token containing numerous period delimiters. This malformed token can force the JWE.deserialize() function to allocate excessive memory, leading to a MemoryError. This issue results in a denial of service (DoS) for services that process untrusted JWE values.","status":"published","published":"2026-08-27T21:14:23Z","modified":"2026-11-11T08:45:44Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-11T10:28:08.859925Z"}],"nvd":[{"id":"CVE-2026-80179","description":"A flaw was found in jwcrypto. A remote attacker can send a specially crafted JSON Web Encryption (JWE) token containing numerous period delimiters. This malformed token can force the JWE.deserialize() function to allocate excessive memory, leading to a MemoryError. This issue results in a denial of service (DoS) for services that process untrusted JWE values.","status":"published","published":"2026-08-28T00:18:20.337Z","modified":"2026-11-11T09:17:15.943Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-770"],"updated_at":"2026-11-11T12:24:41.831783Z"}],"osv":[{"id":"DEBIAN-CVE-2026-80179","description":"A flaw was found in jwcrypto. A remote attacker can send a specially crafted JSON Web Encryption (JWE) token containing numerous period delimiters. This malformed token can force the JWE.deserialize() function to allocate excessive memory, leading to a MemoryError. This issue results in a denial of service (DoS) for services that process untrusted JWE values.","status":"published","published":"2026-08-28T00:18:20.337Z","modified":"2026-10-01T03:03:35.789958728Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:46:04.001673Z"},{"id":"UBUNTU-CVE-2026-80179","description":"A flaw was found in jwcrypto. A remote attacker can send a specially crafted JSON Web Encryption (JWE) token containing numerous period delimiters. This malformed token can force the JWE.deserialize() function to allocate excessive memory, leading to a MemoryError. This issue results in a denial of service (DoS) for services that process untrusted JWE values.","status":"published","published":"2026-08-28T00:18:00Z","modified":"2026-10-17T13:01:09.619110673Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T16:57:18.015985Z"},{"id":"AZL-98337","title":"CVE-2026-80179 affecting package python-jwcrypto 0.6.0-9","description":"A flaw was found in jwcrypto. A remote attacker can send a specially crafted JSON Web Encryption (JWE) token containing numerous period delimiters. This malformed token can force the JWE.deserialize() function to allocate excessive memory, leading to a MemoryError. This issue results in a denial of service (DoS) for services that process untrusted JWE values.","status":"published","published":"2026-08-28T00:18:20Z","modified":"2026-11-05T05:36:30Z","updated_at":"2026-11-05T16:41:26.280152Z"},{"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"}]}}