CVE-2026-45186
Published: May 13, 2026Last modified: May 14, 2026
Description
In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via moderately sized crafted XML input.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | expat | Fixed (2.7.5-r1) |
| 25 LTS | expat | Fixed (2.7.5-r1) | |
| Stream | expat | Fixed (2.8.1-r0) | |
| Hardened Containers | 23 LTS | expat | Fixed (2.7.5-r1) |
| 25 LTS | expat | Fixed (2.7.5-r1) | |
| Stream | expat | Fixed (2.8.1-r0) |