{"metadata": {"vulnerability": "CVE-2026-118657", "count": 15, "kinds": {"milestone": 5, "sighting": 2, "kev": 0, "other": 8}, "linked_omitted": 0}, "data": [{"timestamp": "2026-09-27T23:04:00Z", "date_only": false, "value": "2026-09-27T23:04:00.000000Z", "kind": "sighting", "label": "Published proof of concept", "source": "https://github.com/labstack/echo/security/advisories/GHSA-2ffq-g2xg-c22p", "record": "CVE-2026-118657", "field": "creation_timestamp", "uuid": "11b5dfc5-ed05-42eb-ab4f-595f72574e5a", "url": "https://github.com/labstack/echo/security/advisories/GHSA-2ffq-g2xg-c22p", "metric_role": "exploit_publication", "metric_basis": "sighting_report"}, {"timestamp": "2026-10-28T17:25:37.561Z", "date_only": false, "value": "2026-10-28T17:25:37.561Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-118657", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-28T20:14:09.883Z", "date_only": false, "value": "2026-10-28T20:14:09.883Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-118657", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-28T20:14:09.883Z", "date_only": false, "value": "2026-10-28T20:14:09.883Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / GitHub_M", "record": "CVE-2026-118657", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-28T20:24:04.310Z", "date_only": false, "value": "2026-10-28T20:24:04.310949Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117520403245001953", "record": "CVE-2026-118657", "field": "creation_timestamp", "uuid": "66cecd8e-854e-49d1-a076-25852471b6b3", "content": "CVE-2026-118657 Echo: HTTPS Redirect and HSTS Bypass via Unconditional Trust of Forwarded Scheme Headers 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.\nhttps://www.cve.org/CVERecord?id=CVE-2026-118657https://github.com/labstack/echo/security/advisories/GHSA-2ffq-g2xg-c22phttps://github.com/labstack/echo/commit/b838391e2eade87ae7e5a09d7bb5087bec271ec1https://github.com/labstack/echo/commit/fc410094b2f3415cf2bf5204082137b205bfd5afhttps://github.com/labstack/echo/releases/tag/v4.16.0https://github.com/labstack/echo/releases/tag/v5.4.0#labstack #echo#CVE_2026_118657#bot", "url": "https://infosec.exchange/users/cve/statuses/117520403245001953"}, {"timestamp": "2026-10-28T21:04:52Z", "date_only": false, "value": "2026-10-28T21:04:52Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-2FFQ-G2XG-C22P", "record": "GHSA-2FFQ-G2XG-C22P", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-28T21:04:52Z", "date_only": false, "value": "2026-10-28T21:04:52Z", "kind": "other", "label": "Updated", "source": 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