CVE-2026-86139 :: Enginsight Vulnerability Database

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
mitre	CNA	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: 1.31%

Early Detection

Affected products identified ahead of NVD analysis through intelligence sources.

Vendor	Product	Version	Source
xmlsoft	libxml2	𝑥 < 2.15.4	CNA

Debian Releases

Debian Product

Codename

libxml2

bookworm	vulnerable
bookworm (security)	vulnerable
forky	vulnerable
sid	2.15.4+dfsg-1 fixed
trixie	vulnerable
trixie (security)	vulnerable

Common Weakness Enumeration

CWE-190 - Integer Overflow or Wraparound
The software performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.

References

https://github.com/GNOME/libxml2/commit/8edbbdb09f24d26a2f900141fddc2b9d014f53b0

https://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4