PT-2026-60848 · Red Hat · Red Hat Enterprise Linux 10+3

CVE-2026-16118 · Published 2026-07-17 · Updated 2026-07-17

Mitre

CVSS v3.1

7.1

High

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H

A flaw was found in xdgmime. A heap-based buffer overflow can be triggered in xdg mime magic parse magic line() in the xdgmimemagic.c file on little-endian systems when an attacker-controlled MIME magic file in a user-writable XDG data location (e.g., in the $XDG DATA HOME/mime/magic path) is parsed by an application performing MIME type detection (e.g., via g content type guess()). When performing byte-swap, incorrect pointer arithmetic on the write side causes an out-of-bounds write of 2 bytes, resulting in an application crash or memory corruption.

Fix

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

CVE-2026-16118

Affected Products

Red Hat Enterprise Linux 10

Red Hat Enterprise Linux 7

Red Hat Enterprise Linux 8

Red Hat Enterprise Linux 9

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-16118 · Security Note
• https://gitlab.freedesktop.org/xdg/xdgmime/-/work_items/41 · Note
• https://access.redhat.com/security/cve/CVE-2026-16118 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2501732 · Note