Bug 2506241

Summary: CVE-2026-55677 golang-github-labstack-echo-4: Echo: Unauthorized Information Disclosure via URL Path Decoding Discrepancy [fedora-all]
Product: [Fedora] Fedora Reporter: Anten Skrabec <askrabec>
Component: golang-github-labstack-echo-4Assignee: Orphan Owner <extras-orphan>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: high    
Version: 45CC: extras-orphan, go-sig
Target Milestone: ---Keywords: Security, SecurityTracking
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Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["d124b919-ceb4-4430-9e3a-e16dd459d75d"]}
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On:    
Bug Blocks: 2493622    

Description Anten Skrabec 2026-07-22 20:24:05 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.

Echo is a Go web framework. Prior to 4.15.3 and 5.2.0, Echo's router and static file handler disagree on URL path decoding. The router matches routes using the raw encoded path (preserving %2F as-is), while StaticDirectoryHandler unescapes %2F to / before resolving filesystem paths. This allows an attacker to bypass route-level access controls and read static files without authorization. This vulnerability is fixed in 4.15.3 and 5.2.0.
Comment 1 Aoife Moloney 2026-08-17 15:35:59 UTC 
This bug appears to have been reported against 'rawhide' during the Fedora Linux 45 development cycle.
Changing version to 45.