CVE-2026-76956 :: Enginsight Vulnerability Database

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
mitre	CNA	5.9 MEDIUM	NETWORK	HIGH	NONE	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: 18.27%

Early Detection

Affected products identified ahead of NVD analysis through intelligence sources.

Vendor	Product	Version	Source
libexpat_project	libexpat	2.8.2 ≤ 𝑥 < 2.8.4	CNA

Debian Releases

Debian Product

Codename

expat

bookworm	vulnerable
bookworm (security)	vulnerable
bullseye	vulnerable
bullseye (security)	vulnerable
forky	vulnerable
sid	vulnerable
trixie	vulnerable
trixie (security)	vulnerable

Common Weakness Enumeration

CWE-394 - Unexpected Status Code or Return Value
The software does not properly check when a function or operation returns a value that is legitimate for the function, but is not expected by the software.

Vulnerability Media Exposure

[GERMAN] expat: Schwachstelle ermöglicht Denial of Service
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in expat ausnutzen, um einen Denial of Service Angriff durchzuführen.
Published: 2026-08-19T22:00:00+00:00

References

https://github.com/libexpat/libexpat/pull/1326

https://github.com/libexpat/libexpat/pull/1329