#1149668 libx11: CVE-2026-94283 CVE-2026-94284 CVE-2026-94285

Package:
src:libx11
Source:
src:libx11
Submitter:
Salvatore Bonaccorso
Date:
2026-10-08 17:39:27 UTC
Severity:
normal
Tags:
#1149668#5
Date:
2026-10-02 03:27:26 UTC
From:
To:
Hi,

The following vulnerabilities were published for libx11.

CVE-2026-94283[0]:
| An out-of-bounds read vulnerability in libX11's XIM (X Input Method)
| attribute parser in libX11 before 1.8.14 could be used by malicious
| X servers to crash attached X clients.


CVE-2026-94284[1]:
| An out-of-bounds read vulnerability in libX11's XIM trigger-key
| registration parser in libX11 before 1.8.14 could be used by
| malicious X servers to crash attached X clients.


CVE-2026-94285[2]:
| An out-of-bounds read in libX11's byte-oriented codeset parser in
| libX11 before 1.8.14 could be used by malicious X servers to crash
| attached X clients.


If you fix the vulnerabilities please also make sure to include the
CVE (Common Vulnerabilities & Exposures) ids in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-94283
https://www.cve.org/CVERecord?id=CVE-2026-94283
[1] https://security-tracker.debian.org/tracker/CVE-2026-94284
https://www.cve.org/CVERecord?id=CVE-2026-94284
[2] https://security-tracker.debian.org/tracker/CVE-2026-94285
https://www.cve.org/CVERecord?id=CVE-2026-94285
[3] https://gitlab.freedesktop.org/xorg/lib/libx11/-/merge_requests/310

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore