CVE-2026-16118

high

Description

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.

References

https://access.redhat.com/errata/RHSA-2026:79357

https://access.redhat.com/errata/RHSA-2026:76042

https://access.redhat.com/errata/RHSA-2026:75660

https://access.redhat.com/errata/RHSA-2026:75659

https://access.redhat.com/errata/RHSA-2026:75658

https://access.redhat.com/errata/RHSA-2026:75657

https://access.redhat.com/errata/RHSA-2026:75655

https://access.redhat.com/errata/RHSA-2026:75654

https://access.redhat.com/errata/RHSA-2026:75652

https://access.redhat.com/errata/RHSA-2026:74771

https://access.redhat.com/errata/RHSA-2026:74688

https://access.redhat.com/errata/RHSA-2026:74687

https://access.redhat.com/errata/RHSA-2026:74685

https://access.redhat.com/errata/RHSA-2026:74683

https://access.redhat.com/errata/RHSA-2026:74681

https://access.redhat.com/errata/RHSA-2026:74679

https://access.redhat.com/errata/RHSA-2026:74678

https://access.redhat.com/errata/RHSA-2026:74677

https://access.redhat.com/errata/RHSA-2026:74674

https://access.redhat.com/errata/RHSA-2026:74463

https://access.redhat.com/errata/RHSA-2026:74462

https://access.redhat.com/errata/RHSA-2026:74461

https://access.redhat.com/errata/RHSA-2026:74460

https://access.redhat.com/errata/RHSA-2026:74459

https://access.redhat.com/errata/RHSA-2026:74458

https://access.redhat.com/errata/RHSA-2026:74450

https://access.redhat.com/errata/RHSA-2026:74365

https://access.redhat.com/errata/RHSA-2026:74364

https://access.redhat.com/errata/RHSA-2026:74363

https://access.redhat.com/errata/RHSA-2026:74362

https://access.redhat.com/errata/RHSA-2026:74361

https://access.redhat.com/errata/RHSA-2026:74360

https://access.redhat.com/errata/RHSA-2026:74359

https://access.redhat.com/errata/RHSA-2026:73962

https://access.redhat.com/errata/RHSA-2026:73961

https://access.redhat.com/errata/RHSA-2026:73960

https://access.redhat.com/errata/RHSA-2026:73959

https://access.redhat.com/errata/RHSA-2026:73930

https://access.redhat.com/errata/RHSA-2026:73929

https://access.redhat.com/errata/RHSA-2026:73909

https://access.redhat.com/errata/RHSA-2026:73859

https://access.redhat.com/errata/RHSA-2026:72502

https://access.redhat.com/errata/RHSA-2026:72476

https://access.redhat.com/errata/RHSA-2026:72475

https://access.redhat.com/errata/RHSA-2026:72470

https://access.redhat.com/errata/RHSA-2026:72399

https://access.redhat.com/errata/RHSA-2026:72395

https://access.redhat.com/errata/RHSA-2026:72394

https://access.redhat.com/errata/RHSA-2026:71405

https://access.redhat.com/errata/RHSA-2026:71404

https://access.redhat.com/errata/RHSA-2026:71403

https://access.redhat.com/errata/RHSA-2026:70636

https://access.redhat.com/errata/RHSA-2026:67956

https://access.redhat.com/errata/RHSA-2026:66451

https://access.redhat.com/errata/RHSA-2026:64800

https://access.redhat.com/errata/RHSA-2026:64799

Details

Source: Mitre, NVD

Published: 2026-07-17

Updated: 2026-10-09

Risk Information

CVSS v2

Base Score: 6.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.1

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

Severity: High

EPSS

EPSS: 0.00277