Bug 2435963

Summary: CVE-2026-1761 libsoup3: Stack-Based Buffer Overflow in libsoup Multipart Response Parsingmultipart HTTP response [fedora-all]
Product: [Fedora] Fedora Reporter: Abhishek Raj <abhraj>
Component: libsoup3Assignee: Gwyn Ciesla <gwync>
Status: CLOSED CURRENTRELEASE QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: 43CC: gnome-sig, gwync, mcrha
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["c346f65c-5ca9-4398-9de5-a9a4cb0fc285"]}
Fixed In Version: libsoup3-3.6.6-1.fc43 libsoup3-3.6.6-1.fc44 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-03-19 14:37:05 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: 2435961    

Description Abhishek Raj 2026-02-02 13:19:27 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 14:37:05 UTC 
Filled upstream as https://gitlab.gnome.org/GNOME/libsoup/-/issues/493 , fixed in 3.6.6 by https://gitlab.gnome.org/GNOME/libsoup/-/commit/e924b355ff13dc464c900ada2c11c97c2e0c515e