Medium severity5.9NVD Advisory· Published Aug 28, 2026· Updated Aug 31, 2026
CVE-2026-80179
CVE-2026-80179
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.
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Affected products
3- osv-coords2 versionspkg:rpm/opensuse/python-jwcrypto&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/python-jwcrypto&distro=openSUSE%20Tumbleweed
< 1.5.6-160000.4.1+ 1 more
- (no CPE)range: < 1.5.6-160000.4.1
- (no CPE)range: < 1.6.0-1.1
Patches
Vulnerability mechanics
References
3News mentions
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