Bug 2464554 - CVE-2026-5450 glibc: glibc: Heap Buffer Overflow in `scanf` with `%mc` format specifier and large width [fedora-all]
Summary: CVE-2026-5450 glibc: glibc: Heap Buffer Overflow in `scanf` with `%mc` format...
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Fedora
Classification: Fedora
Component: glibc
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Carlos O'Donell
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["dbe78904-9cc4-4957-bef0-2...
Depends On:
Blocks: CVE-2026-5450
TreeView+ depends on / blocked
 
Reported: 2026-05-01 18:31 UTC by Keith Grant
Modified: 2026-05-29 14:50 UTC (History)
15 users (show)

Fixed In Version: glibc-2.42-12.fc43 glibc-2.43-4.fc44 glibc-2.43.9000-15.fc45
Clone Of:
Environment:
Last Closed: 2026-05-29 13:20:10 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)

Description Keith Grant 2026-05-01 18:31:03 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.
Comment 1 Arjun Shankar 2026-05-29 13:20:10 UTC 
This was fixed with 839898777226a3ed88c0859f25ffe712519b4ead, which is already in rawhide with glibc-2.43.9000-15.fc45.
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