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Advisory severityLow3.7Red Hat Linux

Low [CVE-2026-5419] Information disclosure via timing side-channel in PKCS#7 padding removal

This low-severity Red Hat Linux advisory covers CVE-2026-5419 affecting Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.6 Extended Update Support.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-5419 Source published

VulniPulse record published

CVE-2026-5419
Affected products & platforms
Red Hat LinuxUnclassified
Open source advisory

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Summary

Information disclosure via timing side-channel in PKCS#7 padding removal. Red Hat rates this low (CVSS 3.7).

Weakness: CWE-208. Affected package(s): rhui5/haproxy-rhel9:1781525671, gnutls, rhui5/installer-rhel9:1781525693, rhui5/cds-rhel9:1781525684, discovery/discovery-ui-rhel9:1782166952, discovery/discovery-server-rhel9:1782159791.

Resolved in Red Hat advisory RHSA-2026:20613 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.6 Extended Update Support; Red Hat Discovery 2; and 8 more.

Affected versions
  • rhui5/haproxy-rhel9:1781525671
  • gnutls-0:3.8.9-9.el10_0.19
  • gnutls-0:3.8.10-4.el9_8
  • rhui5/installer-rhel9:1781525693
  • gnutls-0:3.8.10-4.el10_2
  • rhui5/cds-rhel9:1781525684
  • discovery/discovery-ui-rhel9:1782166952
  • gnutls-0:3.8.3-4.el9_4.6
  • discovery/discovery-server-rhel9:1782159791
  • gnutls-0:3.8.3-6.el9_6.4
  • rhui5/rhua-rhel9:1781525739

Official advisory · high-confidence parse· fetched 4 months ago·verify at source

Fixed versions
  • RHSA-2026:20613

Official advisory · high-confidence parse· fetched 4 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Update the affected package(s) to the fixed version shipped in RHSA-2026:20613 (`sudo dnf update` / `yum update`).

Official advisory · high-confidence parse· fetched 4 months ago·verify at source

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