CVE catalog

CVE-2026-29079

DEBIAN-CVE-2026-29079

[CVE catalog]

Severity
Unknown
Published
Updated
Source
[NVD] · [CVE record]
EPSS
0.27% · Oct 25, 2026

Lexbor is a web browser engine library. Prior to 2.7.0, a type‑confusion vulnerability exists in Lexbor’s HTML fragment parser. When ns = UNDEF, a comment is created using the “unknown element” constructor. The comment’s data are written into the element’s fields via an unsafe cast, corrupting the qualified_name field. That corrupted value is later used as a pointer and dereferenced near the zero page. This vulnerability is fixed in 2.7.0.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Debianlexbor142.6.0-1vulnerable
Debianlexbor142.6.0-2vulnerable
Debianlexbor143.0.0-1~exp1vulnerable
Debianlexbor143.0.0-1fixed

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debianlexbordeb143.0.0-1Not reportedDEBIAN-CVE-2026-29079Not reported

OpenFactory catalog packages

No matching packages in this catalog.

Observed:

References