High7.4Red Hat Linux

High [CVE-2026-35535] Privilege escalation due to failure in privilege drop calls

This high-severity Red Hat Linux advisory covers CVE-2026-35535 affecting Sudo, Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION.

CVE-2026-35535 Published Apr 3, 2026

CVE-2026-35535

Affected products & platforms

Red Hat LinuxUnclassified

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Summary

Privilege escalation due to failure in privilege drop calls. Red Hat rates this important (CVSS 7.4).

Weakness: CWE-272. Affected package(s): rhcos, sudo, rhui5/rhua-rhel9:1779798222, rhaiis/vllm-rocm-rhel9:1782353093, rhui5/installer-rhel9:1779798165.

Resolved in Red Hat advisory RHSA-2026:20040 — 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 6 Extended Lifecycle Support - EXTENSION; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support; and 18 more.

Affected versions

rhcos-412.86.202605271418-0
sudo-0:1.9.15-10.p5.el10_1
rhcos-415.92.202606030318-0
sudo-0:1.9.17-4.p2.el10_2
rhcos-413.92.202605271328-0
rhcos-414.92.202606231112-0
sudo-0:1.9.5p2-1.el8_10.5
sudo-0:1.9.5p2-15.el9_7
sudo-0:1.8.6p3-29.el6_10.8
rhcos-416.94.202605200242-0
rhui5/rhua-rhel9:1779798222
sudo-0:1.9.5p2-10.el9_4.3

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

RHSA-2026:20040

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Update the affected package(s) to the fixed version shipped in RHSA-2026:20040 (`sudo dnf update` / `yum update`).

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

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