ESB-2026.3672 — Vulnetix

ESB-2026.3672 PUBLISHED CVSS 5.300000190734863 MEDIUM

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.3672 pcs security update 15 April 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: pcs Publisher: Red Hat Operating System: Red Hat Resolution: Patch/Upgrade CVE Names: CVE-2026-31958 Original Bulletin: https://access.redhat.com/errata/RHSA-2026:8093 Comment: CVSS (Max): 5.3 CVE-2026-31958 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L) CVSS Source: Red Hat Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L EPSS (Max): 0.0% (9th) CVE-2026-31958 2026-04-14 - --------------------------BEGIN INCLUDED TEXT-------------------- RHSA-2026:8093 - Security Advisory Issued: 2026-04-14 Updated: 2026-04-14 Synopsis Pcs security update Type/Severity Security Advisory: Moderate Topic An update for pcs is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. 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 pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities. Security Fix(es): o tornado-python: Tornado: Denial of Service via large multipart bodies (CVE-2026-31958) 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 o Red Hat Enterprise Linux High Availability for x86_64 8 x86_64 o Red Hat Enterprise Linux High Availability for ARM 64 8 aarch64 o Red Hat Enterprise Linux Resilient Storage for x86_64 8 x86_64 o Red Hat Enterprise Linux Resilient Storage for IBM z Systems 8 s390x o Red Hat Enterprise Linux High Availability for IBM z Systems 8 s390x o Red Hat Enterprise Linux Resilient Storage for Power, little endian 8 ppc64le o Red Hat Enterprise Linux High Availability for Power, little endian 8 ppc64le o Red Hat Enterprise Linux High Availability for ARM 64 - Extended Life Cycle 8.10 aarch64 o Red Hat Enterprise Linux High Availability for Power, little endian - Extended Life Cycle 8.10 ppc64le o Red Hat Enterprise Linux High Availability for IBM z Systems - Extended Life Cycle 8.10 s390x o Red Hat Enterprise Linux High Availability for x86_64 - Extended Life Cycle 8.10 x86_64 o Red Hat Enterprise Linux Resilient Storage for Power, little endian - Extended Life Cycle 8.10 ppc64le o Red Hat Enterprise Linux Resilient Storage for IBM z Systems - Extended Life Cycle 8.10 s390x o Red Hat Enterprise Linux Resilient Storage for x86_64 - Extended Life Cycle 8.10 x86_64 Fixes o BZ - 2446765 - CVE-2026-31958 tornado-python: Tornado: Denial of Service via large multipart bodies CVEs o CVE-2026-31958 References o https://access.redhat.com/security/updates/classification/#moderate - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. 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It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://portal.auscert.org.au/bulletins/ =========================================================================== AUSCERT The University of Queensland, Brisbane QLD 4072 Australia e: auscert@auscert.org.au t: +61 (0)7 3365 4417 Allies in Cyber Security ===========================================================================

Risk Scores

CVSS v3.1

5.300000190734863

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected Products

Vendor	Product	Versions
Red Hat	pcs

Timeline

Apr 15, 2026 CVE Published
Apr 15, 2026 Distribution Patch

References

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