RHSA-2026:98061 - Security Advisory

Topic

An update for python-jwcrypto is now available for Red Hat Enterprise Linux 10.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems.

Security Fix(es):

• jwcrypto: jwcrypto: Denial of Service via malformed JWE tokens (CVE-2026-80179)
• jwcrypto: jwcrypto: denial of service via O(n^2) duplicate check on unbounded JWK key_ops array (CVE-2026-92091)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 10 x86_64
• Red Hat Enterprise Linux for IBM z Systems 10 s390x
• Red Hat Enterprise Linux for Power, little endian 10 ppc64le
• Red Hat Enterprise Linux for ARM 64 10 aarch64

Fixes

• BZ - 2524147 - CVE-2026-80179 jwcrypto: jwcrypto: Denial of Service via malformed JWE tokens
• BZ - 2533849 - CVE-2026-92091 jwcrypto: jwcrypto: denial of service via O(n^2) duplicate check on unbounded JWK key_ops array

CVEs

• CVE-2026-80179
• CVE-2026-92091

References

• https://access.redhat.com/security/updates/classification/#moderate