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.

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Fixes

Solution

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Workaround

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History

Thu, 27 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
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.
Title Jwcrypto: jwcrypto: denial of service via malformed jwe tokens
First Time appeared Redhat
Redhat ansible Automation Platform
Redhat enterprise Linux
Redhat openshift Ai
Redhat openstack
Weaknesses CWE-770
CPEs cpe:/a:redhat:ansible_automation_platform:2
cpe:/a:redhat:openshift_ai
cpe:/a:redhat:openstack:16.2
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat ansible Automation Platform
Redhat enterprise Linux
Redhat openshift Ai
Redhat openstack
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-08-27T21:14:23.428Z

Reserved: 2026-08-25T21:13:03.622Z

Link: CVE-2026-80179

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-28T00:18:20.337

Modified: 2026-08-28T00:18:20.337

Link: CVE-2026-80179

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-08-26T00:00:00Z

Links: CVE-2026-80179 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses