lexbor: Lexbor is a web browser engine library
CVE-2026-29079 is fixed in lexbor on 1 platform by DEBIAN-CVE-2026-29079 (version 3.0.0-1), released March 13, 2026. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| lexbor · Debian 14 | 3.0.0-1 | DEBIAN-CVE-2026-29079 | Mar 13, 2026 |
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