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Debian Linux: Unprivileged user can access sensitive system files

DEBIAN-CVE-2026-34003
Summary

A vulnerability in Debian Linux allows an attacker with unprivileged access to read sensitive system files, potentially leading to unauthorized access to system configuration and data. This could be exploited by a malicious user to gain elevated privileges or disrupt system operations. Debian users should update their systems to the latest version to address this issue.

What to do

No fix is available yet. Check with your software vendor for updates.

Affected software
Ecosystem VendorProductAffected versions
Debian:11 debian xorg-server All versions
Debian:12 debian xorg-server All versions
Debian:13 debian xorg-server All versions
Debian:14 debian xorg-server All versions
Debian:12 debian xwayland All versions
Debian:13 debian xwayland All versions
Debian:14 debian xwayland All versions
Original title
DEBIAN-CVE-2026-34003
Published: 14 Apr 2026 · Updated: 14 Apr 2026 · First seen: 14 Apr 2026