CVE-2026-118655mediumCWE-174

CVE-2026-118655: medium-severity vulnerability in labstack echo

Echo: Static Middleware Double-Unescape Path Traversal

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.9epss 0.3%
Echo is a Go web framework. Prior to 4.15.3 and 5.2.0, middleware.Static can decode an already decoded Request.URL.Path a second time. Double-encoded separators can consequently be reconstructed before filesystem resolution. This can reach a file under a guarded route when the static middleware is registered globally. This issue is fixed in 4.15.3 and 5.2.0.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
labstack · echo
Related CVEs — labstack echo

In the same product, most dangerous first.

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