CVE catalog

CVE-2026-16118

Severity: High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: Jun 30, 2026, 1:19:17 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.22% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	glib2.0	sid	`2.90.1-2`	fixed
Debian	glib2.0	forky	`2.90.1-2`	fixed
Debian	glib2.0	trixie	`2.84.4-3~deb13u5`	fixed
Debian	glib2.0	bookworm	`2.74.6-2+deb12u9`	vulnerable
Debian	glib2.0	bookworm-security	`2.74.6-2+deb12u2`	vulnerable
Ubuntu	glib2.0	noble	`2.80.0-6ubuntu3.9`	fixed
Ubuntu	gir1.2-girepository-3.0	noble	`2.80.0-6ubuntu3.9`	fixed
Ubuntu	gir1.2-girepository-3.0-dev	noble	`2.80.0-6ubuntu3.9`	fixed
Ubuntu	gir1.2-glib-2.0	noble	`2.80.0-6ubuntu3.9`	fixed
Ubuntu	gir1.2-glib-2.0-dev	noble	`2.80.0-6ubuntu3.9`	fixed
Ubuntu	libgirepository-2.0-0	noble	`2.80.0-6ubuntu3.9`	fixed
Ubuntu	libgirepository-2.0-dev	noble	`2.80.0-6ubuntu3.9`	fixed
Ubuntu	libglib2.0-0t64	noble	`2.80.0-6ubuntu3.9`	fixed
Ubuntu	libglib2.0-bin	noble	`2.80.0-6ubuntu3.9`	fixed
Ubuntu	libglib2.0-data	noble	`2.80.0-6ubuntu3.9`	fixed
Ubuntu	libglib2.0-dev	noble	`2.80.0-6ubuntu3.9`	fixed
Ubuntu	libglib2.0-dev-bin	noble	`2.80.0-6ubuntu3.9`	fixed
Ubuntu	libglib2.0-doc	noble	`2.80.0-6ubuntu3.9`	fixed
Ubuntu	libglib2.0-tests	noble	`2.80.0-6ubuntu3.9`	fixed
Ubuntu	glib2.0	pro	`2.62.1-1`	vulnerable
Ubuntu	glib2.0	pro	`2.63.1-2`	vulnerable
Ubuntu	glib2.0	pro	`2.63.1-2ubuntu1`	vulnerable
Ubuntu	glib2.0	pro	`2.63.3-1`	vulnerable
Ubuntu	glib2.0	pro	`2.63.3-3`	vulnerable
Ubuntu	glib2.0	pro	`2.63.5-2`	vulnerable
Ubuntu	glib2.0	pro	`2.64.0-1`	vulnerable
Ubuntu	glib2.0	pro	`2.64.1-1`	vulnerable
Ubuntu	glib2.0	pro	`2.64.2-1~fakesync1`	vulnerable
Ubuntu	glib2.0	pro	`2.64.3-1~ubuntu20.04.1`	vulnerable
Ubuntu	glib2.0	pro	`2.64.6-1~ubuntu20.04.1`	vulnerable
Ubuntu	glib2.0	pro	`2.64.6-1~ubuntu20.04.2`	vulnerable
Ubuntu	glib2.0	pro	`2.64.6-1~ubuntu20.04.3`	vulnerable
Ubuntu	glib2.0	pro	`2.64.6-1~ubuntu20.04.4`	vulnerable
Ubuntu	glib2.0	pro	`2.64.6-1~ubuntu20.04.6`	vulnerable
Ubuntu	glib2.0	pro	`2.64.6-1~ubuntu20.04.7`	vulnerable
Ubuntu	glib2.0	pro	`2.64.6-1~ubuntu20.04.8`	vulnerable
Ubuntu	glib2.0	pro	`2.64.6-1~ubuntu20.04.9`	vulnerable
Ubuntu	glib2.0	pro	`2.64.6-1~ubuntu20.04.9+esm1`	vulnerable
Ubuntu	glib2.0	pro	`2.64.6-1~ubuntu20.04.9+esm2`	fixed
Ubuntu	glib2.0	22.04	`2.68.4-1ubuntu1`	vulnerable
Ubuntu	glib2.0	22.04	`2.70.1-1`	vulnerable
Ubuntu	glib2.0	22.04	`2.70.2-1`	vulnerable
Ubuntu	glib2.0	22.04	`2.71.0-2`	vulnerable
Ubuntu	glib2.0	22.04	`2.71.1-1`	vulnerable
Ubuntu	glib2.0	22.04	`2.71.2-1`	vulnerable
Ubuntu	glib2.0	22.04	`2.71.3-1`	vulnerable
Ubuntu	glib2.0	22.04	`2.72.0-1`	vulnerable
Ubuntu	glib2.0	22.04	`2.72.1-1`	vulnerable
Ubuntu	glib2.0	22.04	`2.72.4-0ubuntu1`	vulnerable
Ubuntu	glib2.0	22.04	`2.72.4-0ubuntu2`	vulnerable
Ubuntu	glib2.0	22.04	`2.72.4-0ubuntu2.2`	vulnerable
Ubuntu	glib2.0	22.04	`2.72.4-0ubuntu2.3`	vulnerable
Ubuntu	glib2.0	22.04	`2.72.4-0ubuntu2.4`	vulnerable
Ubuntu	glib2.0	22.04	`2.72.4-0ubuntu2.5`	vulnerable
Ubuntu	glib2.0	22.04	`2.72.4-0ubuntu2.6`	vulnerable
Ubuntu	glib2.0	22.04	`2.72.4-0ubuntu2.7`	vulnerable
Ubuntu	glib2.0	22.04	`2.72.4-0ubuntu2.8`	vulnerable
Ubuntu	glib2.0	22.04	`2.72.4-0ubuntu2.9`	vulnerable
Ubuntu	glib2.0	22.04	`2.72.4-0ubuntu2.10`	fixed
Ubuntu	glib2.0	24.04	`2.78.0-2`	vulnerable
Ubuntu	glib2.0	24.04	`2.78.1-4`	vulnerable
Ubuntu	glib2.0	24.04	`2.78.3-1`	vulnerable
Ubuntu	glib2.0	24.04	`2.78.3-2`	vulnerable
Ubuntu	glib2.0	24.04	`2.79.1-1`	vulnerable
Ubuntu	glib2.0	24.04	`2.79.2-1~ubuntu1`	vulnerable
Ubuntu	glib2.0	24.04	`2.79.3-3ubuntu5`	vulnerable
Ubuntu	glib2.0	24.04	`2.80.0-6ubuntu1`	vulnerable
Ubuntu	glib2.0	24.04	`2.80.0-6ubuntu3`	vulnerable
Ubuntu	glib2.0	24.04	`2.80.0-6ubuntu3.1`	vulnerable
Ubuntu	glib2.0	24.04	`2.80.0-6ubuntu3.2`	vulnerable
Ubuntu	glib2.0	24.04	`2.80.0-6ubuntu3.4`	vulnerable
Ubuntu	glib2.0	24.04	`2.80.0-6ubuntu3.5`	vulnerable
Ubuntu	glib2.0	24.04	`2.80.0-6ubuntu3.6`	vulnerable
Ubuntu	glib2.0	24.04	`2.80.0-6ubuntu3.7`	vulnerable
Ubuntu	glib2.0	24.04	`2.80.0-6ubuntu3.8`	vulnerable
Ubuntu	glib2.0	24.04	`2.80.0-6ubuntu3.9`	fixed
Ubuntu	glib2.0	26.04	`2.86.0-2`	vulnerable
Ubuntu	glib2.0	26.04	`2.86.1-1`	vulnerable
Ubuntu	glib2.0	26.04	`2.86.1-2`	vulnerable
Ubuntu	glib2.0	26.04	`2.86.2-1`	vulnerable
Ubuntu	glib2.0	26.04	`2.86.3-1`	vulnerable
Ubuntu	glib2.0	26.04	`2.86.3-4`	vulnerable
Ubuntu	glib2.0	26.04	`2.87.2-2`	vulnerable
Ubuntu	glib2.0	26.04	`2.87.2-3`	vulnerable
Ubuntu	glib2.0	26.04	`2.87.3-1`	vulnerable
Ubuntu	glib2.0	26.04	`2.88.0-1`	vulnerable
Ubuntu	glib2.0	26.04	`2.88.0-1ubuntu0.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	glib2.0	source	sid	`2.88.3-3`	not yet assigned	Not reported	[1142717]
Debian	glib2.0	source	forky	`2.88.3-3`	not yet assigned	Not reported	[1142717]
Debian	glib2.0	source	trixie	`2.84.4-3~deb13u5`	not yet assigned	Not reported	[1142717]
Debian	glib2.0	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1142717]
Ubuntu	glib2.0	deb	noble	`2.80.0-6ubuntu3.9`	Not reported	Not reported	Not reported
Ubuntu	gir1.2-girepository-3.0	deb	noble	`2.80.0-6ubuntu3.9`	Not reported	Not reported	Not reported
Ubuntu	gir1.2-girepository-3.0-dev	deb	noble	`2.80.0-6ubuntu3.9`	Not reported	Not reported	Not reported
Ubuntu	gir1.2-glib-2.0	deb	noble	`2.80.0-6ubuntu3.9`	Not reported	Not reported	Not reported
Ubuntu	gir1.2-glib-2.0-dev	deb	noble	`2.80.0-6ubuntu3.9`	Not reported	Not reported	Not reported
Ubuntu	libgirepository-2.0-0	deb	noble	`2.80.0-6ubuntu3.9`	Not reported	Not reported	Not reported
Ubuntu	libgirepository-2.0-dev	deb	noble	`2.80.0-6ubuntu3.9`	Not reported	Not reported	Not reported
Ubuntu	libglib2.0-0t64	deb	noble	`2.80.0-6ubuntu3.9`	Not reported	Not reported	Not reported
Ubuntu	libglib2.0-bin	deb	noble	`2.80.0-6ubuntu3.9`	Not reported	Not reported	Not reported
Ubuntu	libglib2.0-data	deb	noble	`2.80.0-6ubuntu3.9`	Not reported	Not reported	Not reported
Ubuntu	libglib2.0-dev	deb	noble	`2.80.0-6ubuntu3.9`	Not reported	Not reported	Not reported
Ubuntu	libglib2.0-dev-bin	deb	noble	`2.80.0-6ubuntu3.9`	Not reported	Not reported	Not reported
Ubuntu	libglib2.0-doc	deb	noble	`2.80.0-6ubuntu3.9`	Not reported	Not reported	Not reported
Ubuntu	libglib2.0-tests	deb	noble	`2.80.0-6ubuntu3.9`	Not reported	Not reported	Not reported
Ubuntu	glib2.0	deb	pro	`2.64.6-1~ubuntu20.04.9+esm2`	Not reported	UBUNTU-CVE-2026-16118	Not reported
Ubuntu	glib2.0	deb	22.04	`2.72.4-0ubuntu2.10`	Not reported	UBUNTU-CVE-2026-16118	Not reported
Ubuntu	glib2.0	deb	24.04	`2.80.0-6ubuntu3.9`	Not reported	UBUNTU-CVE-2026-16118	Not reported
Ubuntu	glib2.0	deb	26.04	`2.88.0-1ubuntu0.1`	Not reported	UBUNTU-CVE-2026-16118	Not reported

[Debian bug #1142717]

Notes

[bookworm] glib2.0: Minor issue; 2-byte OOB write parsing the mime magic file in an XDG data dir, needs an attacker-writable XDG data dir; unfixed upstream

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libglib2.0-0]Affected
Source package: [glib2.0]
Details (4)
- 2.74.6-2+deb12u9 · amd64 · bookworm
  Affected
  nvd · glib2.0 · debian · bookworm
- 2.74.6-2+deb12u9 · arm64 · bookworm
  Affected
  nvd · glib2.0 · debian · bookworm
- 2.74.6-2+deb12u2 · amd64 · bookworm-security
  Affected
  nvd · glib2.0 · debian · bookworm
- 2.74.6-2+deb12u2 · arm64 · bookworm-security
  Affected
  nvd · glib2.0 · debian · bookworm
[libglib2.0-bin]Affected
Source package: [glib2.0]
Details (4)
- 2.74.6-2+deb12u9 · amd64 · bookworm
  Affected
  nvd · glib2.0 · debian · bookworm
- 2.74.6-2+deb12u9 · arm64 · bookworm
  Affected
  nvd · glib2.0 · debian · bookworm
- 2.74.6-2+deb12u2 · amd64 · bookworm-security
  Affected
  nvd · glib2.0 · debian · bookworm
- 2.74.6-2+deb12u2 · arm64 · bookworm-security
  Affected
  nvd · glib2.0 · debian · bookworm
[libglib2.0-data]Affected
Source package: [glib2.0]
Details (4)
- 2.74.6-2+deb12u9 · all · bookworm
  Affected
  nvd · glib2.0 · debian · bookworm
- 2.74.6-2+deb12u9 · all · bookworm
  Affected
  nvd · glib2.0 · debian · bookworm
- 2.74.6-2+deb12u2 · all · bookworm-security
  Affected
  nvd · glib2.0 · debian · bookworm
- 2.74.6-2+deb12u2 · all · bookworm-security
  Affected
  nvd · glib2.0 · debian · bookworm
[libglib2.0-dev]Affected
Source package: [glib2.0]
Details (4)
- 2.74.6-2+deb12u9 · amd64 · bookworm
  Affected
  nvd · glib2.0 · debian · bookworm
- 2.74.6-2+deb12u9 · arm64 · bookworm
  Affected
  nvd · glib2.0 · debian · bookworm
- 2.74.6-2+deb12u2 · amd64 · bookworm-security
  Affected
  nvd · glib2.0 · debian · bookworm
- 2.74.6-2+deb12u2 · arm64 · bookworm-security
  Affected
  nvd · glib2.0 · debian · bookworm
[libglib2.0-dev-bin]Affected
Source package: [glib2.0]
Details (4)
- 2.74.6-2+deb12u9 · amd64 · bookworm
  Affected
  nvd · glib2.0 · debian · bookworm
- 2.74.6-2+deb12u9 · arm64 · bookworm
  Affected
  nvd · glib2.0 · debian · bookworm
- 2.74.6-2+deb12u2 · amd64 · bookworm-security
  Affected
  nvd · glib2.0 · debian · bookworm
- 2.74.6-2+deb12u2 · arm64 · bookworm-security
  Affected
  nvd · glib2.0 · debian · bookworm
[libglib2.0-doc]Affected
Source package: [glib2.0]
Details (4)
- 2.74.6-2+deb12u9 · all · bookworm
  Affected
  nvd · glib2.0 · debian · bookworm
- 2.74.6-2+deb12u9 · all · bookworm
  Affected
  nvd · glib2.0 · debian · bookworm
- 2.74.6-2+deb12u2 · all · bookworm-security
  Affected
  nvd · glib2.0 · debian · bookworm
- 2.74.6-2+deb12u2 · all · bookworm-security
  Affected
  nvd · glib2.0 · debian · bookworm
[libglib2.0-tests]Affected
Source package: [glib2.0]
Details (4)
- 2.74.6-2+deb12u9 · amd64 · bookworm
  Affected
  nvd · glib2.0 · debian · bookworm
- 2.74.6-2+deb12u9 · arm64 · bookworm
  Affected
  nvd · glib2.0 · debian · bookworm
- 2.74.6-2+deb12u2 · amd64 · bookworm-security
  Affected
  nvd · glib2.0 · debian · bookworm
- 2.74.6-2+deb12u2 · arm64 · bookworm-security
  Affected
  nvd · glib2.0 · debian · bookworm

Observed: Oct 23, 2026, 9:45:19 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]