CVE-2026-86141
Published: September 8, 2026Last modified: September 17, 2026
Description
xmlregexp in libxml2 before 2.15.4 has a NULL pointer dereference in xmlRegNewParserCtxt after a strdup failure, i.e., it does not calculate a string length after NULL checking.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 3.3 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | LOW |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
Notes
Not affected unless CVE-2026-86137 fix (https://github.com/GNOME/libxml2/commit/76fe08d97de88bfaef2f7d5cd27f11954cc5bee2) is applied
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | libxml2 | Not affected (2.10.3-r2) |
| 25 LTS | libxml2 | Not affected (2.13.8-r0) | |
| Stream | libxml2 | Not affected (2.10.3-r2) | |
| Hardened Containers | 23 LTS | libxml2 | Not affected (2.10.3-r2) |
| 25 LTS | libxml2 | Not affected (2.13.8-r0) | |
| Stream | libxml2 | Not affected (2.10.3-r2) |