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.
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History
Fri, 26 Jun 2026 17:30:00 +0000
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ssvc
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Fri, 26 Jun 2026 16:45:00 +0000
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| Description | 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. | |
| Title | Echo: Encoded slash (%2F) bypasses route-level protection and exposes static files | |
| Weaknesses | CWE-22 | |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-06-26T16:50:57.019Z
Reserved: 2026-06-17T00:05:03.778Z
Link: CVE-2026-55677
Updated: 2026-06-26T16:50:28.048Z
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OpenCVE Enrichment
Updated: 2026-06-26T17:30:05Z
Weaknesses