DEBIAN-CVE-2026-8829
HTML::Entities versions before 3.84 for Perl read freed heap memory in _decode_entities. The XS routine backing HTML::Entities::_decode_entities cached a pointer (repl) into the entity-value SV returned by hv_fetch on the entity2char hash. When the input SV was identical to a value SV in that hash, and that value contained its own key as an entity reference, a later call to grow_gap() reallocated the SV's PV buffer and freed the backing allocation that repl still pointed into. The subsequent copy loop read repl_len bytes from the freed allocation. The read may disclose adjacent heap contents into the destination SV.
DEBIAN-CVE-2026-8829
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-2026-8829
libhtml-parser-perl
Source reference: /affected/0/package/name
- Affected versions
- 3.81-1
Source reference:
/affected/0/versions - Fixed versions
- 3.81-1+deb12u1
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
libhtml-parser-perl
Source reference: /affected/1/package/name
- Affected versions
- 3.83-1
Source reference:
/affected/1/versions - Fixed versions
- 3.83-2~deb13u1
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
libhtml-parser-perl
Source reference: /affected/2/package/name
- Affected versions
- 3.83-1
Source reference:
/affected/2/versions3.83-2~deb13u1Source reference:
/affected/2/versions - Fixed versions
- 3.83-2
Source reference:
/affected/2/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": "3.81-1+deb12u1"
}
]
}
],
"package": {
"name": "libhtml-parser-perl",
"purl": "pkg:deb/debian/libhtml-parser-perl?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"3.81-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8829.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.83-2~deb13u1"
}
]
}
],
"package": {
"name": "libhtml-parser-perl",
"purl": "pkg:deb/debian/libhtml-parser-perl?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"3.83-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8829.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.83-2"
}
]
}
],
"package": {
"name": "libhtml-parser-perl",
"purl": "pkg:deb/debian/libhtml-parser-perl?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"3.83-1",
"3.83-2~deb13u1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8829.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #58561 · Revision 1
- Added to Heist Feed
- Publisher date