CVE-2026-16118Xdgmime: heap-based buffer overflow in _xdg_mime_magic_parse_magic_line() in xdgmimemagic.c
Updated under an hour ago ()
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It affects xdgmime and 9 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
- Weakness (CWE)
- CWE-122
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
xdg xdgmime xdg:xdgmime (from the name) | All versions | CNA record |
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux | from 0:2.80.4-12.el10_2.22 not affected | CNA record |
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support redhat:enterprise_linux_eus | from 0:2.80.4-4.el10_0.18 not affected | CNA record |
from 0:2.68.4-7.el9_2.8 not affected | CNA record | |
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support redhat:rhel_eus | from 0:2.68.4-16.el9_6.8 not affected | CNA record |
Red Hat Cert Manager support for Red Hat OpenShift release 1.17 redhat:cert_manager | from 1791371080 not affected | CNA record |
Red Hat Red Hat AI Inference Server 3.2 redhat:ai_inference_server | from 1790621714 not affected | CNA record |
Red Hat Red Hat Cost Management On-Premise 1 redhat:cost_management_on_premise | from 1791460851 not affected | CNA record |
Red Hat Red Hat OpenShift AI 3.0 redhat:openshift_ai | from 1790276886 not affected | CNA record |
Red Hat Red Hat Update Infrastructure 5 redhat:rhui | from 1789479916 not affected | CNA record |
References
- https://access.redhat.com/errata/RHSA-2026:64799vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:64800vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:66451vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:67956vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:70636vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:71403vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:71404vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:71405vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:72394vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:72395vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:72399vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:72470vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:72475vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:72476vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:72502vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:73859vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:73909vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:73929vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:73930vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:73959vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:73960vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:73961vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:73962vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:74359vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:74360vendor-advisory, x-refsource-redhat
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.