Red Hat alert RHSA-2026:1904-01 (resource-agents)

An update for resource-agents is now available for Red Hat Enterprise Linux
8.

Red Hat Product Security has rated this update as having a security impact of
Important. 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.

The resource-agents packages provide the Pacemaker and RGManager service
managers with a set of scripts. These scripts interface with several services
to allow operating in a high-availability (HA) environment.

Security Fix(es):

* pyasn1: pyasn1: Denial of Service due to memory exhaustion from malformed
RELATIVE-OID (CVE-2026-23490)

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.

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Original: https://access.redhat.com/security/data/csaf/v2/advisories/2026/rhsa-2026_1904.json