Red Hat Product Errata RHSA-2026:53364 - Security Advisory
Issued:
2026-08-11
Updated:
2026-08-11

RHSA-2026:53364 - Security Advisory

Synopsis

Important: resource-agents security update

Type/Severity

Security Advisory: Important

Red Hat Lightspeed patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

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.

Description

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 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.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

  • Red Hat Enterprise Linux High Availability for x86_64 8 x86_64
  • Red Hat Enterprise Linux High Availability for ARM 64 8 aarch64
  • Red Hat Enterprise Linux Resilient Storage for x86_64 8 x86_64
  • Red Hat Enterprise Linux Resilient Storage for IBM z Systems 8 s390x
  • Red Hat Enterprise Linux High Availability for IBM z Systems 8 s390x
  • Red Hat Enterprise Linux Resilient Storage for Power, little endian 8 ppc64le
  • Red Hat Enterprise Linux High Availability for Power, little endian 8 ppc64le
  • Red Hat Enterprise Linux High Availability for ARM 64 - Extended Life Cycle 8.10 aarch64
  • Red Hat Enterprise Linux High Availability for Power, little endian - Extended Life Cycle 8.10 ppc64le
  • Red Hat Enterprise Linux High Availability for IBM z Systems - Extended Life Cycle 8.10 s390x
  • Red Hat Enterprise Linux High Availability for x86_64 - Extended Life Cycle 8.10 x86_64
  • Red Hat Enterprise Linux Resilient Storage for Power, little endian - Extended Life Cycle 8.10 ppc64le
  • Red Hat Enterprise Linux Resilient Storage for IBM z Systems - Extended Life Cycle 8.10 s390x
  • Red Hat Enterprise Linux Resilient Storage for x86_64 - Extended Life Cycle 8.10 x86_64

Fixes

  • BZ - 2500041 - CVE-2026-59886 pyasn1: pyasn1: Denial of Service via crafted ASN.1 REAL values

Red Hat Enterprise Linux High Availability for x86_64 8

SRPM
resource-agents-4.9.0-54.el8_10.37.src.rpm SHA-256: 707105b6eccacfb7f1117459cf10867b9f19d8887ad674097a8a52d8d8685eb4
x86_64
resource-agents-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: e4569cc3e3958c1dc4d803c98555e92b7f47018e8e325b784f3163ca43921fa3
resource-agents-aliyun-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: ec65d0869fc9f6a9b0a2e59277fb0639aea1a59674ad9cf8e3272f5f08d318c4
resource-agents-aliyun-debuginfo-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: 3e19ff1a71f83fa4eb4be834962d5dbaecf7ac99dfe9da01e58534546c3eef29
resource-agents-debuginfo-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: 586ee462cd71d95bacc248f1967a4405be3de0933049e9ae835261feed57617e
resource-agents-debugsource-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: 471a4df40486441eeecfafd346c8a21c8a9854e205fb85918b135e3cb77860c4
resource-agents-gcp-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: e1155092b0185330939f2fdada38e17025ed73e8397100738bee9111cc48e2a2
resource-agents-paf-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: 5b8e4cda1166a26139bfab5a67580ab0dcc7377cd8bdfa41361ab05a15757dc1

Red Hat Enterprise Linux High Availability for ARM 64 8

SRPM
resource-agents-4.9.0-54.el8_10.37.src.rpm SHA-256: 707105b6eccacfb7f1117459cf10867b9f19d8887ad674097a8a52d8d8685eb4
aarch64
resource-agents-4.9.0-54.el8_10.37.aarch64.rpm SHA-256: 9efd3b835b060525571d75cf81688ef6a2813d66e988f4dbccaf6c401cd1d620
resource-agents-debuginfo-4.9.0-54.el8_10.37.aarch64.rpm SHA-256: 623206fd86dacbd3d17d7aaadfd0267d5c9bf9a220298e52144a9347d8d3b404
resource-agents-debugsource-4.9.0-54.el8_10.37.aarch64.rpm SHA-256: 1a2164556186878a7060d6ad061abbd5fbf2fa9bfe0bd78c2a868c1bb88baaa0
resource-agents-paf-4.9.0-54.el8_10.37.aarch64.rpm SHA-256: b5ec7ee3e0f1c72988dc6059a0b3738d1a0b3a56648bb6355e03671075410587

Red Hat Enterprise Linux Resilient Storage for x86_64 8

SRPM
resource-agents-4.9.0-54.el8_10.37.src.rpm SHA-256: 707105b6eccacfb7f1117459cf10867b9f19d8887ad674097a8a52d8d8685eb4
x86_64
resource-agents-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: e4569cc3e3958c1dc4d803c98555e92b7f47018e8e325b784f3163ca43921fa3
resource-agents-aliyun-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: ec65d0869fc9f6a9b0a2e59277fb0639aea1a59674ad9cf8e3272f5f08d318c4
resource-agents-aliyun-debuginfo-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: 3e19ff1a71f83fa4eb4be834962d5dbaecf7ac99dfe9da01e58534546c3eef29
resource-agents-debuginfo-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: 586ee462cd71d95bacc248f1967a4405be3de0933049e9ae835261feed57617e
resource-agents-debugsource-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: 471a4df40486441eeecfafd346c8a21c8a9854e205fb85918b135e3cb77860c4
resource-agents-gcp-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: e1155092b0185330939f2fdada38e17025ed73e8397100738bee9111cc48e2a2
resource-agents-paf-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: 5b8e4cda1166a26139bfab5a67580ab0dcc7377cd8bdfa41361ab05a15757dc1

Red Hat Enterprise Linux Resilient Storage for IBM z Systems 8

SRPM
resource-agents-4.9.0-54.el8_10.37.src.rpm SHA-256: 707105b6eccacfb7f1117459cf10867b9f19d8887ad674097a8a52d8d8685eb4
s390x
resource-agents-4.9.0-54.el8_10.37.s390x.rpm SHA-256: f6c7740d09c5f94ec706ffd8c3705af8cf14d89868d599c0fe1b1c977bc8c585
resource-agents-debuginfo-4.9.0-54.el8_10.37.s390x.rpm SHA-256: 1dae9a8f2a2ce2bf950ab5b9f17348993bc2a222ecf0bd03072a9adc37caee8e
resource-agents-debugsource-4.9.0-54.el8_10.37.s390x.rpm SHA-256: 93db59611c273e0bd5fd913b1b6a7bba1b4860147e574700ee31e3906307d42b
resource-agents-paf-4.9.0-54.el8_10.37.s390x.rpm SHA-256: 1b406d7109e914bd74aa180f177243dacb0a5676a4689dc6a80dd69acdf9da4d

Red Hat Enterprise Linux High Availability for IBM z Systems 8

SRPM
resource-agents-4.9.0-54.el8_10.37.src.rpm SHA-256: 707105b6eccacfb7f1117459cf10867b9f19d8887ad674097a8a52d8d8685eb4
s390x
resource-agents-4.9.0-54.el8_10.37.s390x.rpm SHA-256: f6c7740d09c5f94ec706ffd8c3705af8cf14d89868d599c0fe1b1c977bc8c585
resource-agents-debuginfo-4.9.0-54.el8_10.37.s390x.rpm SHA-256: 1dae9a8f2a2ce2bf950ab5b9f17348993bc2a222ecf0bd03072a9adc37caee8e
resource-agents-debugsource-4.9.0-54.el8_10.37.s390x.rpm SHA-256: 93db59611c273e0bd5fd913b1b6a7bba1b4860147e574700ee31e3906307d42b
resource-agents-paf-4.9.0-54.el8_10.37.s390x.rpm SHA-256: 1b406d7109e914bd74aa180f177243dacb0a5676a4689dc6a80dd69acdf9da4d

Red Hat Enterprise Linux Resilient Storage for Power, little endian 8

SRPM
resource-agents-4.9.0-54.el8_10.37.src.rpm SHA-256: 707105b6eccacfb7f1117459cf10867b9f19d8887ad674097a8a52d8d8685eb4
ppc64le
resource-agents-4.9.0-54.el8_10.37.ppc64le.rpm SHA-256: b4a7297d081caa3d1971fb593158ce520313b8503e53d7d49c59dbe5cebd2de8
resource-agents-debuginfo-4.9.0-54.el8_10.37.ppc64le.rpm SHA-256: c2a1a20f7b597fef59d6e3c5b6bb36c78364a9da14c42d8a136dc3aacb0d8ae7
resource-agents-debugsource-4.9.0-54.el8_10.37.ppc64le.rpm SHA-256: 34c0a65ca264a2dfb458a448ad20949109d187e6d5f09589b54f1a59ec97e9a8
resource-agents-paf-4.9.0-54.el8_10.37.ppc64le.rpm SHA-256: 45e77e18b093ea9c5bcb533456c471e799ed25ed6c0cbdbee408453769b3c563

Red Hat Enterprise Linux High Availability for Power, little endian 8

SRPM
resource-agents-4.9.0-54.el8_10.37.src.rpm SHA-256: 707105b6eccacfb7f1117459cf10867b9f19d8887ad674097a8a52d8d8685eb4
ppc64le
resource-agents-4.9.0-54.el8_10.37.ppc64le.rpm SHA-256: b4a7297d081caa3d1971fb593158ce520313b8503e53d7d49c59dbe5cebd2de8
resource-agents-debuginfo-4.9.0-54.el8_10.37.ppc64le.rpm SHA-256: c2a1a20f7b597fef59d6e3c5b6bb36c78364a9da14c42d8a136dc3aacb0d8ae7
resource-agents-debugsource-4.9.0-54.el8_10.37.ppc64le.rpm SHA-256: 34c0a65ca264a2dfb458a448ad20949109d187e6d5f09589b54f1a59ec97e9a8
resource-agents-paf-4.9.0-54.el8_10.37.ppc64le.rpm SHA-256: 45e77e18b093ea9c5bcb533456c471e799ed25ed6c0cbdbee408453769b3c563

Red Hat Enterprise Linux High Availability for ARM 64 - Extended Life Cycle 8.10

SRPM
resource-agents-4.9.0-54.el8_10.37.src.rpm SHA-256: 707105b6eccacfb7f1117459cf10867b9f19d8887ad674097a8a52d8d8685eb4
aarch64
resource-agents-4.9.0-54.el8_10.37.aarch64.rpm SHA-256: 9efd3b835b060525571d75cf81688ef6a2813d66e988f4dbccaf6c401cd1d620
resource-agents-debuginfo-4.9.0-54.el8_10.37.aarch64.rpm SHA-256: 623206fd86dacbd3d17d7aaadfd0267d5c9bf9a220298e52144a9347d8d3b404
resource-agents-debugsource-4.9.0-54.el8_10.37.aarch64.rpm SHA-256: 1a2164556186878a7060d6ad061abbd5fbf2fa9bfe0bd78c2a868c1bb88baaa0
resource-agents-paf-4.9.0-54.el8_10.37.aarch64.rpm SHA-256: b5ec7ee3e0f1c72988dc6059a0b3738d1a0b3a56648bb6355e03671075410587

Red Hat Enterprise Linux High Availability for Power, little endian - Extended Life Cycle 8.10

SRPM
resource-agents-4.9.0-54.el8_10.37.src.rpm SHA-256: 707105b6eccacfb7f1117459cf10867b9f19d8887ad674097a8a52d8d8685eb4
ppc64le
resource-agents-4.9.0-54.el8_10.37.ppc64le.rpm SHA-256: b4a7297d081caa3d1971fb593158ce520313b8503e53d7d49c59dbe5cebd2de8
resource-agents-debuginfo-4.9.0-54.el8_10.37.ppc64le.rpm SHA-256: c2a1a20f7b597fef59d6e3c5b6bb36c78364a9da14c42d8a136dc3aacb0d8ae7
resource-agents-debugsource-4.9.0-54.el8_10.37.ppc64le.rpm SHA-256: 34c0a65ca264a2dfb458a448ad20949109d187e6d5f09589b54f1a59ec97e9a8
resource-agents-paf-4.9.0-54.el8_10.37.ppc64le.rpm SHA-256: 45e77e18b093ea9c5bcb533456c471e799ed25ed6c0cbdbee408453769b3c563

Red Hat Enterprise Linux High Availability for IBM z Systems - Extended Life Cycle 8.10

SRPM
resource-agents-4.9.0-54.el8_10.37.src.rpm SHA-256: 707105b6eccacfb7f1117459cf10867b9f19d8887ad674097a8a52d8d8685eb4
s390x
resource-agents-4.9.0-54.el8_10.37.s390x.rpm SHA-256: f6c7740d09c5f94ec706ffd8c3705af8cf14d89868d599c0fe1b1c977bc8c585
resource-agents-debuginfo-4.9.0-54.el8_10.37.s390x.rpm SHA-256: 1dae9a8f2a2ce2bf950ab5b9f17348993bc2a222ecf0bd03072a9adc37caee8e
resource-agents-debugsource-4.9.0-54.el8_10.37.s390x.rpm SHA-256: 93db59611c273e0bd5fd913b1b6a7bba1b4860147e574700ee31e3906307d42b
resource-agents-paf-4.9.0-54.el8_10.37.s390x.rpm SHA-256: 1b406d7109e914bd74aa180f177243dacb0a5676a4689dc6a80dd69acdf9da4d

Red Hat Enterprise Linux High Availability for x86_64 - Extended Life Cycle 8.10

SRPM
resource-agents-4.9.0-54.el8_10.37.src.rpm SHA-256: 707105b6eccacfb7f1117459cf10867b9f19d8887ad674097a8a52d8d8685eb4
x86_64
resource-agents-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: e4569cc3e3958c1dc4d803c98555e92b7f47018e8e325b784f3163ca43921fa3
resource-agents-aliyun-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: ec65d0869fc9f6a9b0a2e59277fb0639aea1a59674ad9cf8e3272f5f08d318c4
resource-agents-aliyun-debuginfo-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: 3e19ff1a71f83fa4eb4be834962d5dbaecf7ac99dfe9da01e58534546c3eef29
resource-agents-debuginfo-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: 586ee462cd71d95bacc248f1967a4405be3de0933049e9ae835261feed57617e
resource-agents-debugsource-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: 471a4df40486441eeecfafd346c8a21c8a9854e205fb85918b135e3cb77860c4
resource-agents-gcp-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: e1155092b0185330939f2fdada38e17025ed73e8397100738bee9111cc48e2a2
resource-agents-paf-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: 5b8e4cda1166a26139bfab5a67580ab0dcc7377cd8bdfa41361ab05a15757dc1

Red Hat Enterprise Linux Resilient Storage for Power, little endian - Extended Life Cycle 8.10

SRPM
resource-agents-4.9.0-54.el8_10.37.src.rpm SHA-256: 707105b6eccacfb7f1117459cf10867b9f19d8887ad674097a8a52d8d8685eb4
ppc64le
resource-agents-4.9.0-54.el8_10.37.ppc64le.rpm SHA-256: b4a7297d081caa3d1971fb593158ce520313b8503e53d7d49c59dbe5cebd2de8
resource-agents-debuginfo-4.9.0-54.el8_10.37.ppc64le.rpm SHA-256: c2a1a20f7b597fef59d6e3c5b6bb36c78364a9da14c42d8a136dc3aacb0d8ae7
resource-agents-debugsource-4.9.0-54.el8_10.37.ppc64le.rpm SHA-256: 34c0a65ca264a2dfb458a448ad20949109d187e6d5f09589b54f1a59ec97e9a8
resource-agents-paf-4.9.0-54.el8_10.37.ppc64le.rpm SHA-256: 45e77e18b093ea9c5bcb533456c471e799ed25ed6c0cbdbee408453769b3c563

Red Hat Enterprise Linux Resilient Storage for IBM z Systems - Extended Life Cycle 8.10

SRPM
resource-agents-4.9.0-54.el8_10.37.src.rpm SHA-256: 707105b6eccacfb7f1117459cf10867b9f19d8887ad674097a8a52d8d8685eb4
s390x
resource-agents-4.9.0-54.el8_10.37.s390x.rpm SHA-256: f6c7740d09c5f94ec706ffd8c3705af8cf14d89868d599c0fe1b1c977bc8c585
resource-agents-debuginfo-4.9.0-54.el8_10.37.s390x.rpm SHA-256: 1dae9a8f2a2ce2bf950ab5b9f17348993bc2a222ecf0bd03072a9adc37caee8e
resource-agents-debugsource-4.9.0-54.el8_10.37.s390x.rpm SHA-256: 93db59611c273e0bd5fd913b1b6a7bba1b4860147e574700ee31e3906307d42b
resource-agents-paf-4.9.0-54.el8_10.37.s390x.rpm SHA-256: 1b406d7109e914bd74aa180f177243dacb0a5676a4689dc6a80dd69acdf9da4d

Red Hat Enterprise Linux Resilient Storage for x86_64 - Extended Life Cycle 8.10

SRPM
resource-agents-4.9.0-54.el8_10.37.src.rpm SHA-256: 707105b6eccacfb7f1117459cf10867b9f19d8887ad674097a8a52d8d8685eb4
x86_64
resource-agents-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: e4569cc3e3958c1dc4d803c98555e92b7f47018e8e325b784f3163ca43921fa3
resource-agents-aliyun-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: ec65d0869fc9f6a9b0a2e59277fb0639aea1a59674ad9cf8e3272f5f08d318c4
resource-agents-aliyun-debuginfo-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: 3e19ff1a71f83fa4eb4be834962d5dbaecf7ac99dfe9da01e58534546c3eef29
resource-agents-debuginfo-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: 586ee462cd71d95bacc248f1967a4405be3de0933049e9ae835261feed57617e
resource-agents-debugsource-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: 471a4df40486441eeecfafd346c8a21c8a9854e205fb85918b135e3cb77860c4
resource-agents-gcp-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: e1155092b0185330939f2fdada38e17025ed73e8397100738bee9111cc48e2a2
resource-agents-paf-4.9.0-54.el8_10.37.x86_64.rpm SHA-256: 5b8e4cda1166a26139bfab5a67580ab0dcc7377cd8bdfa41361ab05a15757dc1

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