RHSA-2026:59239: Important: python-pyasn1 security update
Important: python-pyasn1 security update
Other sources
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): pyasn1: pyasn1: Denial of Service via crafted ASN.1 REAL values (CVE-2026-59886) 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.
— Red Hat
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
redhat/python-pyasn1to a version that resolves this vulnerability.Fixed in 0.4.8-6.el9_2.2 - Upgrade
Upgrade
redhat/python3-pyasn1to a version that resolves this vulnerability.Fixed in 0.4.8-6.el9_2.2 - Upgrade
Upgrade
redhat/python3-pyasn1-modulesto a version that resolves this vulnerability.Fixed in 0.4.8-6.el9_2.2
Event History
Frequently Asked Questions
Which environments are covered by this update?
The advisory applies to listed Red Hat Enterprise Linux offerings for ARM 64, x86_64, Power little endian, and IBM z Systems, including Extended Life Cycle, AUS, and Update Services for SAP Solutions variants.
How urgent is remediation?
The update is rated Important with high severity (7) and a risk value of 33. Apply the vendor security update to affected systems as soon as operationally feasible.