CVE-2026-86139

EUVD-2026-71832
In libxml2 before 2.15.4, xmlURIEscapeStr in uri.c has an integer overflow.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.9 MEDIUM
LOCAL
HIGH
NONE
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 5.46%
Affected Products (NVD)
VendorProductVersion
xmlsoftlibxml2
𝑥
< 2.15.4
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
libxml2
bookworm
2.9.14+dfsg-1.3~deb12u6
fixed
bookworm (security)
2.9.14+dfsg-1.3~deb12u4
fixed
forky
2.15.4+dfsg-1
fixed
sid
2.15.4+dfsg-1
fixed
trixie
vulnerable
trixie (security)
vulnerable
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
libxml2
bionic
not-affected
focal
not-affected
jammy
not-affected
noble
not-affected
resolute
Fixed 2.15.2+dfsg-0.1ubuntu0.3
released
trusty
not-affected
xenial
not-affected