CVE-2026-86137CWE-125

CVE-2026-86137

Low · published September 5, 2026

CVSS v3.1
2.9
EPSS
0%
Percentile
8.7
In the wild
Unconfirmed
What it is

In libxml2 before 2.15.4, xmlFAParsePosCharGroup has an out-of-bounds read, aka an out-of-bounds read in the NXT macro in xmlregexp.

The record
Technical detail
CVSS v3.1
2.9 · LOW
Vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00195 · 8.7th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-09-05T09:17Z
Affected products (1)
ProductVersionsFixed in
xmlsoft/libxml2< 2.15.42.15.4
References (3)
https://github.com/GNOME/libxml2/commit/76fe08d97de88bfaef2f7d5cd27f11954cc5bee2 · [email protected]https://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4 · [email protected]https://gitlab.gnome.org/GNOME/libxml2/-/work_items/1099 · [email protected]
EPSS history
Timeline
  • 06 SEP 03:33Z
    EPSS moved — → 0%
    epss
  • 05 SEP 04:19Z
    In libxml2 before 2.15.4, xmlFAParsePosCharGroup has an out-of-bounds read, aka an out-of-bounds read in the NXT macro in xmlregexp
    cvelistv5