Bug 2542982 - CVE-2026-94283 libX11: libX11: Denial of Service via out-of-bounds read in XIM attribute parser [fedora-all]
Summary: CVE-2026-94283 libX11: libX11: Denial of Service via out-of-bounds read in XI...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: libX11
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Adam Jackson
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["dc71e944-796d-4a4a-a587-d...
Depends On:
Blocks: CVE-2026-94283
TreeView+ depends on / blocked
 
Reported: 2026-09-29 07:15 UTC by Vladimir Vasilev
Modified: 2026-09-29 07:15 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:

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Description Vladimir Vasilev 2026-09-29 07:15:08 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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.
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