cvedb.io
CVE-2026-29079
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-03-13T19:54:32.747 · Last modified 2026-06-17T10:29:33.903

Summary

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.

Affected products

lexbor — lexbor

Does this affect you?

Add your gear to cvedb and we'll alert you only when lexbor ships something exploited.

Check my exposure →

References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.