Bug 2433358

Summary: CVE-2026-1489 glib2: GLib: Memory corruption via integer overflow in Unicode case conversion [fedora-all]
Product: [Fedora] Fedora Reporter: Abhishek Raj <abhraj>
Component: glib2Assignee: Matthias Clasen <mclasen>
Status: CLOSED CURRENTRELEASE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: 43CC: gnome-sig, mclasen, mcrha, rhughes, rstrode
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["d470bbb6-b269-4798-a1d3-478115405f5e"]}
Fixed In Version: glib2-2.87.3-1.fc45 glib2-2.87.3-1.fc44 glib2-2.86.4-1.fc43 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-03-19 09:58:04 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2433348    

Description Abhishek Raj 2026-01-27 14:08:52 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 Milan Crha 2026-03-19 09:58:04 UTC 
An upstream fix landed for 2.87.3 and 2.86.4 according to https://gitlab.gnome.org/GNOME/glib/-/issues/3872