{"id":"DEBIAN-CVE-2026-80179","details":"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.","modified":"2026-09-14T17:03:49.111843885Z","published":"2026-08-28T00:18:20.337Z","upstream":["CVE-2026-80179"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-80179"}],"affected":[{"package":{"name":"python-jwcrypto","ecosystem":"Debian:12","purl":"pkg:deb/debian/python-jwcrypto?arch=source&distro=bookworm"},"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"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-80179.json"}},{"package":{"name":"python-jwcrypto","ecosystem":"Debian:13","purl":"pkg:deb/debian/python-jwcrypto?arch=source&distro=trixie"},"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"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-80179.json"}},{"package":{"name":"python-jwcrypto","ecosystem":"Debian:14","purl":"pkg:deb/debian/python-jwcrypto?arch=source&distro=forky"},"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"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-80179.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}