DEBIAN-CVE-2026-76956

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Source

https://security-tracker.debian.org/tracker/CVE-2026-76956

Import Source

https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-76956.json

JSON Data

https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-76956

Upstream

CVE-2026-76956

Published

2026-08-20T05:16:29Z

Modified

2026-09-09T09:00:51Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

[none]

Details

In libexpat 2.8.2 and 2.8.3 before 2.8.4, misinterpretation of getentropy's return code leads to insufficient entropy, which results in being vulnerable to hash flooding attacks, causing a denial of service via crafted XML content.

References

https://security-tracker.debian.org/tracker/CVE-2026-76956

Affected packages

Debian:13 / expat

Package

Name: expat
Purl: pkg:deb/debian/expat?arch=source&distro=trixie

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.7.1-2

2.7.2-1

2.7.3-1

2.7.3-2

2.7.4-1

2.7.5-1

2.8.0-1

2.8.0-2

2.8.1-1

2.8.2-1~deb13u1

2.8.2-1

2.8.3-1~deb13u1

2.8.3-1

2.8.4-1

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-76956.json"

Debian:14 / expat