{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-118657", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-10-28T17:25:37.561Z", "datePublished": "2026-10-28T20:14:09.883Z", "dateUpdated": "2026-10-28T20:14:09.883Z"}, "containers": {"cna": {"title": "Echo: HTTPS Redirect and HSTS Bypass via Unconditional Trust of Forwarded Scheme Headers", "problemTypes": [{"descriptions": [{"cweId": "CWE-346", "lang": "en", "description": "CWE-346: Origin Validation Error", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/labstack/echo/security/advisories/GHSA-2ffq-g2xg-c22p", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/labstack/echo/security/advisories/GHSA-2ffq-g2xg-c22p"}, {"name": "https://github.com/labstack/echo/commit/b838391e2eade87ae7e5a09d7bb5087bec271ec1", "tags": ["x_refsource_MISC"], "url": "https://github.com/labstack/echo/commit/b838391e2eade87ae7e5a09d7bb5087bec271ec1"}, {"name": "https://github.com/labstack/echo/commit/fc410094b2f3415cf2bf5204082137b205bfd5af", "tags": ["x_refsource_MISC"], "url": "https://github.com/labstack/echo/commit/fc410094b2f3415cf2bf5204082137b205bfd5af"}, {"name": "https://github.com/labstack/echo/releases/tag/v4.16.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/labstack/echo/releases/tag/v4.16.0"}, {"name": "https://github.com/labstack/echo/releases/tag/v5.4.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/labstack/echo/releases/tag/v5.4.0"}], "affected": [{"vendor": "labstack", "product": "echo", "versions": [{"version": ">= 5.0.0, < 5.4.0", "status": "affected"}, {"version": "< 4.16.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-28T20:14:09.883Z"}, "descriptions": [{"lang": "en", "value": "Echo is a Go web framework. Prior to 4.16.0 and 5.4.0, Context.Scheme unconditionally trusts forwarded scheme headers from any client. A client that reaches Echo directly over plaintext HTTP can claim an HTTPS scheme and bypass HTTPSRedirect because the request is treated as already secure. Separately, behind a TLS-terminating proxy that passes an attacker-controlled header, a claimed HTTP scheme can suppress the Strict-Transport-Security header even though the browser receives the response over HTTPS. The practical risk is reduced when a trusted proxy overwrites the headers and direct backend access is prevented, but the framework previously had no trusted-source configuration for this decision. This issue is fixed in 4.16.0 and 5.4.0."}], "source": {"advisory": "GHSA-2ffq-g2xg-c22p", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "echo", "vendor": "labstack", "versions": [{"status": "affected", "version": ">= 5.0.0, < 5.4.0"}, {"status": "affected", "version": "< 4.16.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Echo is a Go web framework. Prior to 4.16.0 and 5.4.0, Context.Scheme unconditionally trusts forwarded scheme headers from any client. A client that reaches Echo directly over plaintext HTTP can claim an HTTPS scheme and bypass HTTPSRedirect because the request is treated as already secure. Separately, behind a TLS-terminating proxy that passes an attacker-controlled header, a claimed HTTP scheme can suppress the Strict-Transport-Security header even though the browser receives the response over HTTPS. The practical risk is reduced when a trusted proxy overwrites the headers and direct backend access is prevented, but the framework previously had no trusted-source configuration for this decision. This issue is fixed in 4.16.0 and 5.4.0."}], "id": "CVE-2026-118657", "lastModified": "2026-10-28T21:16:55.693", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 4.2, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-10-28T21:16:55.693", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/labstack/echo/commit/b838391e2eade87ae7e5a09d7bb5087bec271ec1"}, {"source": "security-advisories@github.com", "url": "https://github.com/labstack/echo/commit/fc410094b2f3415cf2bf5204082137b205bfd5af"}, {"source": "security-advisories@github.com", "url": "https://github.com/labstack/echo/releases/tag/v4.16.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/labstack/echo/releases/tag/v5.4.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/labstack/echo/security/advisories/GHSA-2ffq-g2xg-c22p"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-346"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[5.0.0,5.4.0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,4.16.0)"}}], "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": "2026-10-28T21:44:33.893094+00:00", "updated": "2026-10-28T22:15:04.293531+00:00", "vendors": ["labstack", "labstack$PRODUCT$echo"], "weaknesses": ["CWE-346"]}