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: Heap-based buffer overflow in xmlXPtrEval due to xpointer length saturation (CVE-2026-86142) * 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.
RLSA-2026:71586
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:RLSA-2026:71586
libxml2
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 0:2.12.5-10.el10_2.4
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": "0:2.12.5-10.el10_2.4"
}
],
"database_specific": {
"yum_repository": "BaseOS"
}
}
],
"package": {
"name": "libxml2",
"purl": "pkg:rpm/rocky-linux/libxml2?distro=rocky-linux-10&epoch=0",
"ecosystem": "Rocky Linux:10"
},
"database_specific": {
"source": "https://storage.googleapis.com/resf-osv-data/RLSA-2026:71586.json"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #15205 · Revision 1
- Added to Heist Feed
- Publisher date