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High RLSA-2026:19138 2 CVEs

Important: fence-agents security update

Published May 29, 2026 · Updated May 29, 2026

Summary

The fence-agents packages provide a collection of scripts for handling remote power management for cluster devices. They allow failed or unreachable nodes to be forcibly restarted and removed from the cluster.

Security Fix(es):

* pyjwt: PyJWT accepts unknown `crit` header extensions (RFC 7515 ?4.1.11 MUST violation) (CVE-2026-32597)

* pyasn1: pyasn1 Vulnerable to Denial of Service via Unbounded Recursion (CVE-2026-30922)

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.

Fixed packages 1

ReleasePackageFixed in
Rocky Linux · 10 fence-agents 0:4.16.0-21.el10_2.1

Vulnerabilities 2

  • High 7.5

    pyasn1 Vulnerable to Denial of Service via Unbounded Recursion

    pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.3, the `pyasn1` library is vulnerable to a Denial of Service (DoS) attack caused by uncontrolled recursion when decoding ASN.1 data with deeply nested structures. An attacker can supply a crafted payl…

  • High 7.5

    PyJWT accepts unknown `crit` header extensions (RFC 7515 §4.1.11 MUST violation)

    PyJWT is a JSON Web Token implementation in Python. Prior to 2.12.0, PyJWT does not validate the crit (Critical) Header Parameter defined in RFC 7515 §4.1.11. When a JWS token contains a crit array listing extensions that PyJWT does not understand, the librar…

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2448553
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2447194