{"id":"CVE-2026-80179","title":"Jwcrypto: jwcrypto: denial of service via malformed jwe tokens","summary":"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 memor…","severity":"medium","cvss":5.9,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-770"],"vendor":"Red Hat","product":"ansible-automation-platform-24/controller-rhel8","affected":["ansible-automation-platform-24/controller-rhel8 (all versions)","ansible-automation-platform-24/lightspeed-rhel8 (all versions)","ansible-automation-platform-25/controller-rhel8 (all versions)","ansible-automation-platform-25/gateway-rhel8 (all versions)","ansible-automation-platform-25/lightspeed-rhel8 (all versions)","ansible-automation-platform-26/controller-rhel9 (all versions)","ansible-automation-platform-26/gateway-rhel9 (all versions)","ansible-automation-platform-26/lightspeed-rhel9 (all versions)","ansible-automation-platform-27/gateway-rhel9 (all versions)","ansible-automation-platform-27/lightspeed-rhel9 (all versions)","automation-controller (all versions)","python3.11-jwcrypto (all versions)","python3.12-jwcrypto (all versions)","python-jwcrypto (all versions)","python-jwcrypto (all versions)","rhoai/odh-feature-server-rhel9 (all versions)","rhoai/odh-kserve-storage-initializer-rhel9 (all versions)","rhosp-rhel8/openstack-mistral-executor (all versions)","rhosp-rhel8/openstack-nova-api (all versions)","rhosp-rhel8/openstack-nova-compute-ironic (all versions)","rhosp-rhel8/openstack-novajoin-base (all versions)","rhosp-rhel8/openstack-novajoin-notifier (all versions)","rhosp-rhel8/openstack-novajoin-server (all versions)","rhosp-rhel8/openstack-tempest (all versions)","rhosp-rhel8/openstack-tripleoclient (all versions)"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-08-28T15:33:23.609206Z"},"exploitAvailable":true,"published":"2026-08-27","updated":"2026-09-09","sourceUpdated":"2026-09-09T17:11:03.875Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80179","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-80179"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2524147","label":"RHBZ#2524147"},{"url":"https://github.com/latchset/jwcrypto/security/advisories/GHSA-96rv-c4vc-h4f4"}],"tags":["cve.org","exploit-available"],"epss":0.00251,"epssPercentile":0.16828,"ingestedAt":"2026-09-09T18:17:58.317Z","slug":"CVE-2026-80179","body":"## Overview\n\nA 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.\n\n## Affected\n\n- `ansible-automation-platform-24/controller-rhel8 (all versions)`\n- `ansible-automation-platform-24/lightspeed-rhel8 (all versions)`\n- `ansible-automation-platform-25/controller-rhel8 (all versions)`\n- `ansible-automation-platform-25/gateway-rhel8 (all versions)`\n- `ansible-automation-platform-25/lightspeed-rhel8 (all versions)`\n- `ansible-automation-platform-26/controller-rhel9 (all versions)`\n- `ansible-automation-platform-26/gateway-rhel9 (all versions)`\n- `ansible-automation-platform-26/lightspeed-rhel9 (all versions)`\n- `ansible-automation-platform-27/gateway-rhel9 (all versions)`\n- `ansible-automation-platform-27/lightspeed-rhel9 (all versions)`\n- `automation-controller (all versions)`\n- `python3.11-jwcrypto (all versions)`\n- `python3.12-jwcrypto (all versions)`\n- `python-jwcrypto (all versions)`\n- `python-jwcrypto (all versions)`\n- `rhoai/odh-feature-server-rhel9 (all versions)`\n- `rhoai/odh-kserve-storage-initializer-rhel9 (all versions)`\n- `rhosp-rhel8/openstack-mistral-executor (all versions)`\n- `rhosp-rhel8/openstack-nova-api (all versions)`\n- `rhosp-rhel8/openstack-nova-compute-ironic (all versions)`\n- `rhosp-rhel8/openstack-novajoin-base (all versions)`\n- `rhosp-rhel8/openstack-novajoin-notifier (all versions)`\n- `rhosp-rhel8/openstack-novajoin-server (all versions)`\n- `rhosp-rhel8/openstack-tempest (all versions)`\n- `rhosp-rhel8/openstack-tripleoclient (all versions)`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n### Workarounds\n\nMitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":32.5,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}