VULNERABILITY INTELLIGENCE
CVE-2026-80179
CVSS score5.9 MEDIUM
EPSS probability0.41%
CISA KEVNot currently listed
Published2026-08-28
Last modified2026-08-31
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
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.
Weakness classification
- secalert@redhat.com: CWE-770