Important: libxml2 security update
The libxml2 library is a development toolbox providing the implementation of various XML standards. Security Fix(es): * libxml2: libxml2: Arbitrary code execution via heap-based buffer overflow (CVE-2026-86138) * libxml2: libxml2: Data integrity issues due to integer overflow in write callbacks (CVE-2026-86143) * libxml2: libxml2: Arbitrary code execution via stack-based buffer overflow in xmlSnprintfElements (CVE-2026-86140) * libxml2: libxml2: Information disclosure, SSRF, or denial of service due to improper parseFlags propagation. (CVE-2026-86144) * libxml2: double-free/UAF in libxml2 Python bindings (CVE-2026-74860) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
ALSA-2026:71641
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:ALSA-2026:71641
libxml2
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 2.9.7-21.el8_10.9
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
libxml2-devel
Source reference: /affected/1/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 2.9.7-21.el8_10.9
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
python3-libxml2
Source reference: /affected/2/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 2.9.7-21.el8_10.9
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": "2.9.7-21.el8_10.9"
}
]
}
],
"package": {
"name": "libxml2",
"purl": "pkg:rpm/almalinux/libxml2",
"ecosystem": "AlmaLinux:8"
},
"database_specific": {
"source": "https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:71641.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9.7-21.el8_10.9"
}
]
}
],
"package": {
"name": "libxml2-devel",
"purl": "pkg:rpm/almalinux/libxml2-devel",
"ecosystem": "AlmaLinux:8"
},
"database_specific": {
"source": "https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:71641.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9.7-21.el8_10.9"
}
]
}
],
"package": {
"name": "python3-libxml2",
"purl": "pkg:rpm/almalinux/python3-libxml2",
"ecosystem": "AlmaLinux:8"
},
"database_specific": {
"source": "https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:71641.json"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #15310 · Revision 1
- Added to Heist Feed
- Publisher date