{"id":"CVE-2026-118261","revision":"14d55027ca284b4e9dd22c17c94c8f5d","records":[{"revision":"14d55027ca284b4e9dd22c17c94c8f5d","observedAt":"2026-11-05T22:50:23.647+00:00","statement":{"source":"nvd","id":"CVE-2026-118261","aliases":[],"title":"Echo is a Go web framework. From 4.0.0 until 4.16.1, Echo v4's opt-in Decompress middleware exposes a gzip-decoded request stream without limiting its expanded size. A small compressed request can expand into a very large body when a handle…","description":"Echo is a Go web framework. From 4.0.0 until 4.16.1, Echo v4's opt-in Decompress middleware exposes a gzip-decoded request stream without limiting its expanded size. A small compressed request can expand into a very large body when a handler reads or binds it, consuming excessive memory or CPU and allowing repeated or concurrent requests to cause denial of service. The middleware is not enabled by default, and limiting only the compressed request size does not bound the decoded size. This issue is fixed in 4.16.1.","state":0,"publishedAt":"2026-10-28T19:17:30.81+00:00","modifiedAt":"2026-11-04T23:10:00.223+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":8.2,"severity":"HIGH"}],"references":["https://github.com/labstack/echo/commit/3fb0ba7e17645bb65611e2a08875d0a2f65c421f","https://github.com/labstack/echo/releases/tag/v4.16.1","https://github.com/labstack/echo/security/advisories/GHSA-h7wr-284f-5qvc"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-118261","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Undergoing Analysis","weaknesses":["CWE-400","CWE-409"],"productCriteria":[],"sourceDates":{"published":"2026-10-28T19:17:30.810","lastModified":"2026-11-04T23:10:00.223"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-118261","identifiers":["CVE-2026-118261"]},"retained":false,"historicalAffected":[]}],"coverage":[]}