DEBIAN-CVE-2026-29079
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.
DEBIAN-CVE-2026-29079
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-29079
lexbor
Source reference: /affected/0/package/name
- Affected versions
- 2.6.0-1
Source reference:
/affected/0/versions2.6.0-2Source reference:
/affected/0/versions3.0.0-1~exp1Source reference:
/affected/0/versions - Fixed versions
- 3.0.0-1
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.0-1"
}
]
}
],
"package": {
"name": "lexbor",
"purl": "pkg:deb/debian/lexbor?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"2.6.0-1",
"2.6.0-2",
"3.0.0-1~exp1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-29079.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #56343 · Revision 1
- Added to Heist Feed
- Publisher date