Bug 2451337

Summary: CVE-2026-33228 rust: Flatted: Prototype pollution vulnerability allows arbitrary code execution via crafted JSON. [fedora-all]
Product: [Fedora] Fedora Reporter: Keith Grant <kgrant>
Component: rustAssignee: Rust SIG <rust-sig>
Status: CLOSED NOTABUG QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: urgent Docs Contact:
Priority: urgent    
Version: rawhideCC: amulhern, igor.raits, jchecahi, jistone, paumurph, rust-sig
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["2c75c766-519b-4ae7-b890-b0fbdc388bef"]}
Fixed In Version: Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-03-25 16:24:45 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: 2449872    

Description Keith Grant 2026-03-25 15:25:39 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 Paul Murphy 2026-03-25 16:21:41 UTC
flatted is used as part of the vscode plugin for rust-analyzer, for testing of the stringdex crate, and building documentation for the cxx crate.

The vscode plugin isn't packaged with rust-analyzer, stringdex tests are not shipped, and the cxx crate isn't built under the fedora configuration. So, this shouldn't affect users of the rust package.