{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-118655", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-10-28T17:25:37.561Z", "datePublished": "2026-10-28T20:03:56.897Z", "dateUpdated": "2026-10-28T20:03:56.897Z"}, "containers": {"cna": {"title": "Echo: Static Middleware Double-Unescape Path Traversal", "problemTypes": [{"descriptions": [{"cweId": "CWE-174", "lang": "en", "description": "CWE-174: Double Decoding of the Same Data", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/labstack/echo/security/advisories/GHSA-xwq5-6cqp-vx96", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/labstack/echo/security/advisories/GHSA-xwq5-6cqp-vx96"}, {"name": "https://github.com/labstack/echo/issues/2599", "tags": ["x_refsource_MISC"], "url": "https://github.com/labstack/echo/issues/2599"}, {"name": "https://github.com/labstack/echo/pull/3006", "tags": ["x_refsource_MISC"], "url": "https://github.com/labstack/echo/pull/3006"}, {"name": "https://github.com/labstack/echo/commit/a9ede66a5a7196411131beb1ee801e75bbaf7ac6", "tags": ["x_refsource_MISC"], "url": "https://github.com/labstack/echo/commit/a9ede66a5a7196411131beb1ee801e75bbaf7ac6"}, {"name": "https://github.com/labstack/echo/commit/c3fa2a27ff92b2b8db360de614f999ef1da24725", "tags": ["x_refsource_MISC"], "url": "https://github.com/labstack/echo/commit/c3fa2a27ff92b2b8db360de614f999ef1da24725"}, {"name": "https://github.com/labstack/echo/releases/tag/v4.15.3", "tags": ["x_refsource_MISC"], "url": "https://github.com/labstack/echo/releases/tag/v4.15.3"}, {"name": "https://github.com/labstack/echo/releases/tag/v5.2.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/labstack/echo/releases/tag/v5.2.0"}], "affected": [{"vendor": "labstack", "product": "echo", "versions": [{"version": ">= 5.0.0, < 5.2.0", "status": "affected"}, {"version": "< 4.15.3", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-28T20:03:56.897Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-xwq5-6cqp-vx96", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "echo", "vendor": "labstack", "versions": [{"status": "affected", "version": ">= 5.0.0, < 5.2.0"}, {"status": "affected", "version": "< 4.15.3"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-118655", "lastModified": "2026-10-28T20:17:22.723", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-10-28T20:17:22.723", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/labstack/echo/commit/a9ede66a5a7196411131beb1ee801e75bbaf7ac6"}, {"source": "security-advisories@github.com", "url": "https://github.com/labstack/echo/commit/c3fa2a27ff92b2b8db360de614f999ef1da24725"}, {"source": "security-advisories@github.com", "url": "https://github.com/labstack/echo/issues/2599"}, {"source": "security-advisories@github.com", "url": "https://github.com/labstack/echo/pull/3006"}, {"source": "security-advisories@github.com", "url": "https://github.com/labstack/echo/releases/tag/v4.15.3"}, {"source": "security-advisories@github.com", "url": "https://github.com/labstack/echo/releases/tag/v5.2.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/labstack/echo/security/advisories/GHSA-xwq5-6cqp-vx96"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-174"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[5.0.0,5.2.0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,4.15.3)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "echo", "source": "cna", "vendor": "labstack"}, "product": "echo", "vendor": "labstack"}], "created": "2026-10-28T21:44:37.438768+00:00", "updated": "2026-10-28T22:00:18.016220+00:00", "vendors": ["labstack", "labstack$PRODUCT$echo"]}