Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-16118

CVE-2026-16118HIGH

Xdgmime: heap-based buffer overflow in _xdg_mime_magic_parse_magic_line() in xdgmimemagic.c

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   N   R  U  N  H  H    7.1   .0028   18.3     —

AFFECTED
  Product                                                         Versions     Fixed
  xdgmime                                                         unspecified  —
  Red Hat Enterprise Linux 10                                     unspecified  0:2.80.4-12.el10_2.22
  Red Hat Enterprise Linux 10.0 Extended Update Support           unspecified  0:2.80.4-4.el10_0.18
  Red Hat Enterprise Linux 8                                      unspecified  0:2.56.4-178.el8_10
  Red Hat Enterprise Linux 9                                      unspecified  0:2.68.4-19.el9_8.10
  Red Hat Enterprise Linux 9                                      unspecified  0:2.68.4-19.el9_8.10
  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions  unspecified  0:2.68.4-7.el9_2.8
  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions  unspecified  0:2.68.4-14.el9_4.9
  Red Hat Enterprise Linux 9.6 Extended Update Support            unspecified  0:2.68.4-16.el9_6.8
  Cert Manager support for Red Hat OpenShift release 1.20         unspecified  1790223279
  + 48 more

TIMELINE
  Jul 17  Reserved by redhat
  Jul 17  Published (CNA: redhat)
  Sep 7   PATCH SHIPPED — CVE-2026-16118 (xdgmime). Fixed in Red Hat Enterprise Linux 10 0:2.80.4-12.el10_2.22.

CWE-122 · CNA: redhat · CVSS v3.1 · 50 references · NVD status: Awaiting Analysis

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
July 17, 2026	Reserved	Reserved by redhat
July 17, 2026	Published	Published (CNA: redhat)
September 7, 2026	PATCH SHIPPED	PATCH SHIPPED — CVE-2026-16118 (xdgmime). Fixed in Red Hat Enterprise Linux 10 0:2.80.4-12.el10_2.22.

Affected

Affected products and packages — 58 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
xdg	xdgmime	—	—	—
Red Hat	Red Hat Enterprise Linux 10	—	—	0:2.80.4-12.el10_2.22
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	—	—	0:2.80.4-4.el10_0.18
Red Hat	Red Hat Enterprise Linux 8	—	—	0:2.56.4-178.el8_10
Red Hat	Red Hat Enterprise Linux 9	—	—	0:2.68.4-19.el9_8.10
Red Hat	Red Hat Enterprise Linux 9	—	—	0:2.68.4-19.el9_8.10
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	—	—	0:2.68.4-7.el9_2.8
Red Hat	Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions	—	—	0:2.68.4-14.el9_4.9
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	—	—	0:2.68.4-16.el9_6.8
Red Hat	Cert Manager support for Red Hat OpenShift release 1.20	—	—	1790223279
Red Hat	Cert Manager support for Red Hat OpenShift release 1.20	—	—	1790223719
Red Hat	Cert Manager support for Red Hat OpenShift release 1.20	—	—	1790272426
Red Hat	Cert Manager support for Red Hat OpenShift release 1.20	—	—	1790589998
Red Hat	Cert Manager support for Red Hat OpenShift release 1.20	—	—	1790589912
Red Hat	Cert Manager support for Red Hat OpenShift release 1.20	—	—	1790589914
Red Hat	Cert Manager support for Red Hat OpenShift release 1.20	—	—	1790589855
Red Hat	Cert Manager support for Red Hat OpenShift release 1.20	—	—	1790598593
Red Hat	Red Hat AI Inference Server 3.2	—	—	1790621714
Red Hat	Red Hat AI Inference Server 3.2	—	—	1790621718
Red Hat	Red Hat AI Inference Server 3.2	—	—	1790621713
Red Hat	Red Hat OpenShift AI 3.0	—	—	1790276886
Red Hat	Red Hat OpenShift AI 3.0	—	—	1790276884
Red Hat	Red Hat OpenShift AI 3.0	—	—	1790277045
Red Hat	Red Hat OpenShift AI 3.0	—	—	1790276889
Red Hat	Red Hat OpenShift AI 3.0	—	—	1790276974
Red Hat	Red Hat OpenShift AI 3.2	—	—	1790703497
Red Hat	Red Hat OpenShift AI 3.2	—	—	1790703506
Red Hat	Red Hat OpenShift AI 3.2	—	—	1790703590
Red Hat	Red Hat OpenShift AI 3.2	—	—	1790703568
Red Hat	Red Hat OpenShift AI 3.2	—	—	1790703586
Red Hat	Red Hat OpenShift AI 3.2	—	—	1790703494
Red Hat	Red Hat OpenShift AI 3.3	—	—	1790703615
Red Hat	Red Hat OpenShift AI 3.3	—	—	1790703516
Red Hat	Red Hat OpenShift AI 3.3	—	—	1790703524
Red Hat	Red Hat OpenShift AI 3.3	—	—	1790703601
Red Hat	Red Hat OpenShift AI 3.3	—	—	1790703516
Red Hat	Red Hat OpenShift AI 3.3	—	—	1790703608
Red Hat	Red Hat OpenShift AI 3.3	—	—	1790703579
Red Hat	Red Hat OpenShift AI 3.3	—	—	1790703516
Red Hat	Red Hat OpenShift AI 3.4	—	—	1790703542
Red Hat	Red Hat OpenShift AI 3.4	—	—	1790703539
Red Hat	Red Hat OpenShift AI 3.4	—	—	1790703553
Red Hat	Red Hat OpenShift AI 3.4	—	—	1790703631
Red Hat	Red Hat OpenShift AI 3.4	—	—	1790703597
Red Hat	Red Hat OpenShift AI 3.4	—	—	1790703641
Red Hat	Red Hat OpenShift AI 3.4	—	—	1790703630
Red Hat	Red Hat OpenShift AI 3.4	—	—	1790703541
Red Hat	Red Hat OpenShift AI 3.4	—	—	1790703545
Red Hat	Red Hat OpenShift AI 3.5	—	—	1790703552
Red Hat	Red Hat Update Infrastructure 5	—	—	1789479916
Red Hat	Red Hat Update Infrastructure 5	—	—	1789479900
Red Hat	Red Hat Update Infrastructure 5	—	—	1789479891
Red Hat	Red Hat Update Infrastructure 5	—	—	1789482961
Red Hat	Red Hat Update Infrastructure 5	—	—	1789478095
Red Hat	Red Hat Enterprise Linux 7	—	—	—
Red Hat	Red Hat Enterprise Linux 7	—	—	—
Red Hat	Red Hat Enterprise Linux 8	—	—	—
Red Hat	Red Hat Enterprise Linux 9	—	—	—

Weaknesses

CWE-122

References (50)

Authoritative record: CVE-2026-16118 at cve.org

Vendors: xdg · red hat

Weaknesses: CWE-122

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-16118 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.