ALSA-2026:94501: Critical: fence-agents security update

Published Nov 3, 2026
·
Updated

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: Authentication bypass via empty HMAC key acceptance (CVE-2026-102266) pyjwt: PyJWT: Authentication bypass via improper public key validation (CVE-2026-102268) pyjwt: PyJWT: Authentication bypass via acceptance of DER public keys as HMAC secrets (CVE-2026-102271) pyjwt: pyjwt: Verification key substitution via unvalidated JWKS redirects (CVE-2026-102267) pyjwt: pyjwt: Token forgery via improper Unicode byte-order mark handling (CVE-2026-102272)

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.

Affected Software

54 affected componentsFixes available
almalinux/fence-agents-aliyun<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-all<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-amt-ws<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-apc<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-apc-snmp<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-aws<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-azure-arm<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-bladecenter<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-brocade<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-cisco-mds<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-cisco-ucs<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-common<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-drac5<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-eaton-snmp<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-emerson<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-eps<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-gce<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-heuristics-ping<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-hpblade<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-ibm-powervs<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-ibm-vpc<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-ibmblade<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-ifmib<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-ilo-moonshot<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-ilo-mp<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-ilo-ssh<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-ilo2<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-intelmodular<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-ipdu<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-ipmilan<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-kdump<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-kubevirt<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-lpar<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-mpath<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-nutanix-ahv<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-openstack<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-redfish<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-rhevm<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-rsa<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-sbd<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-scsi<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-virsh<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-vmware-rest<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-vmware-soap<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-wti<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-agents-zvm<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-virt<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-virtd<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-virtd-cpg<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-virtd-libvirt<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-virtd-multicast<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-virtd-serial<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/fence-virtd-tcp<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7
almalinux/ha-cloud-support<4.16.0-21.el10_2.7
4.16.0-21.el10_2.7

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade almalinux/fence-agents-aliyun to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  2. Upgrade

    Upgrade almalinux/fence-agents-all to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  3. Upgrade

    Upgrade almalinux/fence-agents-amt-ws to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  4. Upgrade

    Upgrade almalinux/fence-agents-apc to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  5. Upgrade

    Upgrade almalinux/fence-agents-apc-snmp to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  6. Upgrade

    Upgrade almalinux/fence-agents-aws to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  7. Upgrade

    Upgrade almalinux/fence-agents-azure-arm to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  8. Upgrade

    Upgrade almalinux/fence-agents-bladecenter to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  9. Upgrade

    Upgrade almalinux/fence-agents-brocade to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  10. Upgrade

    Upgrade almalinux/fence-agents-cisco-mds to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  11. Upgrade

    Upgrade almalinux/fence-agents-cisco-ucs to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  12. Upgrade

    Upgrade almalinux/fence-agents-common to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  13. Upgrade

    Upgrade almalinux/fence-agents-drac5 to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  14. Upgrade

    Upgrade almalinux/fence-agents-eaton-snmp to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  15. Upgrade

    Upgrade almalinux/fence-agents-emerson to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  16. Upgrade

    Upgrade almalinux/fence-agents-eps to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  17. Upgrade

    Upgrade almalinux/fence-agents-gce to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  18. Upgrade

    Upgrade almalinux/fence-agents-heuristics-ping to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  19. Upgrade

    Upgrade almalinux/fence-agents-hpblade to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  20. Upgrade

    Upgrade almalinux/fence-agents-ibm-powervs to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  21. Upgrade

    Upgrade almalinux/fence-agents-ibm-vpc to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  22. Upgrade

    Upgrade almalinux/fence-agents-ibmblade to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  23. Upgrade

    Upgrade almalinux/fence-agents-ifmib to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  24. Upgrade

    Upgrade almalinux/fence-agents-ilo-moonshot to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  25. Upgrade

    Upgrade almalinux/fence-agents-ilo-mp to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  26. Upgrade

    Upgrade almalinux/fence-agents-ilo-ssh to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  27. Upgrade

    Upgrade almalinux/fence-agents-ilo2 to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  28. Upgrade

    Upgrade almalinux/fence-agents-intelmodular to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  29. Upgrade

    Upgrade almalinux/fence-agents-ipdu to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  30. Upgrade

    Upgrade almalinux/fence-agents-ipmilan to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  31. Upgrade

    Upgrade almalinux/fence-agents-kdump to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  32. Upgrade

    Upgrade almalinux/fence-agents-kubevirt to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  33. Upgrade

    Upgrade almalinux/fence-agents-lpar to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  34. Upgrade

    Upgrade almalinux/fence-agents-mpath to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  35. Upgrade

    Upgrade almalinux/fence-agents-nutanix-ahv to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  36. Upgrade

    Upgrade almalinux/fence-agents-openstack to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  37. Upgrade

    Upgrade almalinux/fence-agents-redfish to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  38. Upgrade

    Upgrade almalinux/fence-agents-rhevm to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  39. Upgrade

    Upgrade almalinux/fence-agents-rsa to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  40. Upgrade

    Upgrade almalinux/fence-agents-rsb to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  41. Upgrade

    Upgrade almalinux/fence-agents-sbd to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  42. Upgrade

    Upgrade almalinux/fence-agents-scsi to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  43. Upgrade

    Upgrade almalinux/fence-agents-virsh to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  44. Upgrade

    Upgrade almalinux/fence-agents-vmware-rest to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  45. Upgrade

    Upgrade almalinux/fence-agents-vmware-soap to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  46. Upgrade

    Upgrade almalinux/fence-agents-wti to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  47. Upgrade

    Upgrade almalinux/fence-agents-zvm to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  48. Upgrade

    Upgrade almalinux/fence-virt to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  49. Upgrade

    Upgrade almalinux/fence-virtd to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  50. Upgrade

    Upgrade almalinux/fence-virtd-cpg to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  51. Upgrade

    Upgrade almalinux/fence-virtd-libvirt to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  52. Upgrade

    Upgrade almalinux/fence-virtd-multicast to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  53. Upgrade

    Upgrade almalinux/fence-virtd-serial to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  54. Upgrade

    Upgrade almalinux/fence-virtd-tcp to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7
  55. Upgrade

    Upgrade almalinux/ha-cloud-support to a version that resolves this vulnerability.

    Fixed in 4.16.0-21.el10_2.7

Event History

Nov 3, 2026
Advisory Published
via OSV·12:00 AM
Data Sourced
via OSV·12:00 AM
DescriptionAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

Which systems should be prioritized for review?

Prioritize systems that use the fence-agents packages to perform remote power management for cluster devices, including forcibly restarting or removing failed or unreachable nodes. The advisory does not identify affected configurations, package versions, or default-installation exposure.

2

Where can I find severity and detailed impact information?

The advisory directs readers to the listed CVE reference pages for impact details, CVSS scores, acknowledgments, and related information. No CVSS score is included in the advisory text.

3

When was this advisory published?

It was published on 2026-11-03.

Company

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