CVE-2026-24515
Published: January 28, 2026Last modified: February 2, 2026
Description
In libexpat before 2.7.4, XML_ExternalEntityParserCreate does not copy unknown encoding handler user data.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.8 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | expat | Fixed (2.7.3-r1) |
| 25 LTS | expat | Fixed (2.7.3-r1) | |
| Stream | expat | Fixed (2.7.3-r1) | |
| Hardened Containers | 23 LTS | expat | Vulnerable (2.5.0-r0) |
| 25 LTS | expat | Vulnerable (2.7.1-r0) | |
| Stream | expat | Fixed (2.7.3-r1) |