Bug 2433321

Summary: CVE-2026-1484 xdg-desktop-portal-cosmic: Integer Overflow Leading to Buffer Underflow and Out-of-Bounds Write in GLib g_base64_encode() [fedora-all]
Product: [Fedora] Fedora Reporter: Abhishek Raj <abhraj>
Component: xdg-desktop-portal-cosmicAssignee: Ryan Brue <ryanbrue.dev>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: 43CC: cosmic-sig, decathorpe, rust-sig, ryanbrue.dev
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["a1c2e48b-9ea4-412f-b7f8-2a9358aad591"]}
Fixed In Version: Doc Type: ---
Doc Text:
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Clone Of: Environment:
Last Closed: 2026-02-05 21:15:40 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2433259    

Description Abhishek Raj 2026-01-27 12:56:38 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 Fabio Valentini 2026-02-05 21:15:40 UTC 
This issue is in the "glib" C library (packaged as "glib2"), not in the "glib" Rust crate used in this package.
glib2 is only dynamically linked here. So the issue needs to be fixed in glib2, and there is nothing to be done here.