CVE-2026-86140
Publication date 5 September 2026
Last updated 16 September 2026
Ubuntu priority
Description
In libxml2 before 2.15.4, xmlSnprintfElements in valid.c has a strcat stack-based buffer overflow.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| libxml2 | 26.04 LTS resolute |
Vulnerable
|
| 24.04 LTS noble |
Vulnerable
|
|
| 22.04 LTS jammy |
Vulnerable
|
|
| 20.04 LTS focal |
Vulnerable
|
|
| 18.04 LTS bionic |
Vulnerable
|
|
| 16.04 LTS xenial |
Vulnerable
|
|
| 14.04 LTS trusty |
Vulnerable
|
Severity score breakdown
CVSS version: CVSS v3.0
Base score
8.0 · High
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L