RHSA-2026:59248: 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 0.3.7-6.el8_4.2 - Upgrade
Upgrade
redhat/python3-pyasn1to a version that resolves this vulnerability.Fixed in 0.3.7-6.el8_4.2 - Upgrade
Upgrade
redhat/python3-pyasn1-modulesto a version that resolves this vulnerability.Fixed in 0.3.7-6.el8_4.2
Event History
Frequently Asked Questions
Which Red Hat environments are identified as affected?
The advisory applies to Red Hat Enterprise Linux for x86_64 Extended Life Cycle Long Life and Red Hat Enterprise Linux Server AUS.
Does the advisory provide vulnerability or affected-version details for prioritizing exposure?
No. The provided advisory data identifies this as an important python-pyasn1 security update with high severity, but does not include CVE identifiers, affected package versions, exploit prerequisites, or configuration details.