CVE-2026-88807
Publication date 21 September 2026
Last updated 30 September 2026
Ubuntu priority
Description
A heap overflow in libXrender before 0.9.13 in RenderQueryPictFormats could be used by malicious X servers to inject code into attached X clients.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| libxrender | 26.04 LTS resolute |
Vulnerable, fix deferred
|
| 24.04 LTS noble |
Vulnerable, fix deferred
|
|
| 22.04 LTS jammy |
Vulnerable, fix deferred
|
|
| 20.04 LTS focal |
Vulnerable, fix deferred
|
|
| 18.04 LTS bionic |
Vulnerable, fix deferred
|
|
| 16.04 LTS xenial |
Vulnerable, fix deferred
|
|
| 14.04 LTS trusty |
Vulnerable, fix deferred
|
Notes
mdeslaur
as of 2026-09-29, the patch in the merge request has not been merged into the main tree by libxrender developers
Severity score breakdown
CVSS version: CVSS v4.0
Base score
8.9 · High
Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H