TI-2026-55422 Aliases CVE-2026-80179

Jwcrypto: jwcrypto: denial of service via malformed jwe tokens

MEDIUM 60CWE-770Published 2026-08-27 · Updated 2026-11-06

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Deferred Red Hat: fix deferred

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-770.

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 memory, leading to a MemoryError. This issue results in a denial of service (DoS) for services that process untrusted JWE values.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.003 22nd percentileScored 2026-11-07

Fix Deferred Red Hat: fix deferred

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Red Hat	Red Hat Ansible Automation Platform 2	—	—	No fix listed	CNA
Red Hat	Red Hat Ansible Automation Platform 2	—	—	No fix listed	CNA
Red Hat	Red Hat Ansible Automation Platform 2	—	—	No fix listed	CNA
Red Hat	Red Hat Ansible Automation Platform 2	—	—	No fix listed	CNA
Red Hat	Red Hat Ansible Automation Platform 2	—	—	No fix listed	CNA
Red Hat	Red Hat Ansible Automation Platform 2	—	—	No fix listed	CNA
Red Hat	Red Hat Ansible Automation Platform 2	—	—	No fix listed	CNA
Red Hat	Red Hat Ansible Automation Platform 2	—	—	No fix listed	CNA
Red Hat	Red Hat Ansible Automation Platform 2	—	—	No fix listed	CNA
Red Hat	Red Hat Ansible Automation Platform 2	—	—	No fix listed	CNA
Red Hat	Red Hat Ansible Automation Platform 2	—	—	No fix listed	CNA
Red Hat	Red Hat Ansible Automation Platform 2	—	—	No fix listed	CNA
Red Hat	Red Hat Ansible Automation Platform 2	—	—	No fix listed	CNA
Red Hat	Red Hat Enterprise Linux 10	—	—	No fix listed	CNA
Red Hat	Red Hat Enterprise Linux 9	—	—	No fix listed	CNA
Red Hat	Red Hat OpenShift AI (RHOAI)	—	—	No fix listed	CNA
Red Hat	Red Hat OpenShift AI (RHOAI)	—	—	No fix listed	CNA
Red Hat	Red Hat OpenStack Platform 16.2	—	—	No fix listed	CNA
Red Hat	Red Hat OpenStack Platform 16.2	—	—	No fix listed	CNA
Red Hat	Red Hat OpenStack Platform 16.2	—	—	No fix listed	CNA
Red Hat	Red Hat OpenStack Platform 16.2	—	—	No fix listed	CNA
Red Hat	Red Hat OpenStack Platform 16.2	—	—	No fix listed	CNA
Red Hat	Red Hat OpenStack Platform 16.2	—	—	No fix listed	CNA
Red Hat	Red Hat OpenStack Platform 16.2	—	—	No fix listed	CNA
Red Hat	Red Hat OpenStack Platform 16.2	—	—	No fix listed	CNA

Red Hat Ansible Automation Platform 2 VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat Ansible Automation Platform 2 VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat Ansible Automation Platform 2 VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat Ansible Automation Platform 2 VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat Ansible Automation Platform 2 VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat Ansible Automation Platform 2 VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat Ansible Automation Platform 2 VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat Ansible Automation Platform 2 VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat Ansible Automation Platform 2 VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat Ansible Automation Platform 2 VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat Ansible Automation Platform 2 VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat Ansible Automation Platform 2 VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat Ansible Automation Platform 2 VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat Enterprise Linux 10 VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat OpenShift AI (RHOAI) VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat OpenShift AI (RHOAI) VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat OpenStack Platform 16.2 VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat OpenStack Platform 16.2 VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat OpenStack Platform 16.2 VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat OpenStack Platform 16.2 VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat OpenStack Platform 16.2 VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat OpenStack Platform 16.2 VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat OpenStack Platform 16.2 VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat OpenStack Platform 16.2 VendorRed Hat Affected — Fixed in — No fix listed CNA

CPE names CNA · 5

CPE	Versions	Role	Vendor
cpe:/a:redhat:ansible_automation_platform:2	2	—	Red Hat
cpe:/a:redhat:enterprise_linux:10	10	—	Red Hat
cpe:/a:redhat:enterprise_linux:9	9	—	Red Hat
cpe:/a:redhat:openshift_ai	—	—	Red Hat
cpe:/a:redhat:openstack:16.2	16.2	—	Red Hat

cpe:/a:redhat:ansible_automation_platform:2 Versions 2 — ·Red Hat
cpe:/a:redhat:enterprise_linux:10 Versions 10 — ·Red Hat
cpe:/a:redhat:enterprise_linux:9 Versions 9 — ·Red Hat
cpe:/a:redhat:openshift_ai Versions — — ·Red Hat
cpe:/a:redhat:openstack:16.2 Versions 16.2 — ·Red Hat

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Ansible Automation Platform 2	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux 10	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux 9	Affected	No fix yet: Fix deferred
Red Hat OpenShift AI (RHOAI)	Affected	No fix yet: Fix deferred
Red Hat OpenStack Platform 16.2	Affected	No fix yet: Fix deferred

Timeline

2026-10-02 Threatist record created from CVE-2026-80179

References

Other 3

TI-2019-15875 Protection mechanism failure in Jenkins Pipeline: Groovy Plugin KEVCVSS 3.1CRITICAL 9.9
TI-2019-15874 Protection mechanism failure in Jenkins Script Security Plugin KEVCVSS 3.1CRITICAL 9.9
TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
TI-2019-03949 Out-of-bounds write in ESXi and Horizon DaaS KEVCVSS 3.1CRITICAL 9.8
TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8

See all 7412 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences