Important: expat security update
Expat is a C library for parsing XML documents. Security Fix(es): * expat: Expat: Denial of Service via quadratic complexity in attribute processing (CVE-2026-66046) * expat: Expat: XML Injection via Malformed UTF-16 Input (CVE-2026-93990) 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-2026:72663
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-2026:72663
expat
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 0:2.5.0-6.el9_8.5
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": "0:2.5.0-6.el9_8.5"
}
],
"database_specific": {
"yum_repository": "BaseOS"
}
}
],
"package": {
"name": "expat",
"purl": "pkg:rpm/rocky-linux/expat?distro=rocky-linux-9&epoch=0",
"ecosystem": "Rocky Linux:9"
},
"database_specific": {
"source": "https://storage.googleapis.com/resf-osv-data/RLSA-2026:72663.json"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #37668 · Revision 1
- Added to Heist Feed
- Publisher date