{"cve":"CVE-2026-118654","nvd":{"published":"2026-10-28T20:17:22.550","modified":"2026-10-28T20:17:22.550","status":"Received","description":"Echo is a Go web framework. Prior to 4.16.0 and 5.4.0, Echo's static file handlers can normalize dot segments after route matching and serve a file through a public static route even though the corresponding direct path is protected by route-level middleware. An unauthenticated attacker can read files that an application intended to protect with route-level middleware, when those files are also reachable through a static filesystem mount after path normalization. This vulnerability is the result of an incomplete fix for CVE-2026-55677. This issue is fixed in 4.16.0 and 5.4.0.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","score":5.9},"cwes":["CWE-22"],"references":["https://github.com/labstack/echo/commit/b838391e2eade87ae7e5a09d7bb5087bec271ec1","https://github.com/labstack/echo/commit/fc410094b2f3415cf2bf5204082137b205bfd5af","https://github.com/labstack/echo/releases/tag/v4.16.0","https://github.com/labstack/echo/releases/tag/v5.4.0","https://github.com/labstack/echo/security/advisories/GHSA-3pmx-cf9f-34xr"],"products":[],"source":"nvd","synced_at":"2026-10-28T20:41:45.883959281+00:00"},"epss":null,"kev":null,"osv":[{"id":"GHSA-3pmx-cf9f-34xr","url":"https://osv.dev/vulnerability/GHSA-3pmx-cf9f-34xr","summary":"Echo static file middleware route protection bypass via encoded dot-dot traversal","modified":"2026-10-28T21:15:05.143057870Z","packages":[{"ecosystem":"Go","name":"github.com/labstack/echo/v5","purl":"pkg:golang/github.com/labstack/echo/v5","ranges":["<5.4.0"],"fixed":["5.4.0"]},{"ecosystem":"Go","name":"github.com/labstack/echo/v4","purl":"pkg:golang/github.com/labstack/echo/v4","ranges":["<4.16.0"],"fixed":["4.16.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}