CVE-2026-80179

Published: Aug 28, 2026Modified: Aug 31, 2026

5.9

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 2.2 / Impact: 3.6

Source: secalert@redhat.com (Secondary)

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.

Related CWEs

CWE-770

Allocation of Resources Without Limits or Throttling

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.

References (4)

https://access.redhat.com/security/cve/CVE-2026-80179

Source: secalert@redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2524147

Source: secalert@redhat.com

https://github.com/latchset/jwcrypto/security/advisories/GHSA-96rv-c4vc-h4f4

Source: secalert@redhat.com

https://github.com/latchset/jwcrypto/security/advisories/GHSA-96rv-c4vc-h4f4

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.