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CVE-2026-29079
Published: Mar 13, 2026
Modified: Mar 16, 2026
PUBLISHED
Description
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.
| Vendor | Product | Versions |
|---|---|---|
lexbor | lexbor | affected < 2.7.0 |
Weaknesses (CWE)
References
https://github.com/lexbor/lexbor/security/advisories/GHSA-mrpr-v36q-2vp8
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