{"id":"EUVD-2026-54722","revision":"a8ea63b8fd7d406eae2cc5a785e1373a","records":[{"revision":"a8ea63b8fd7d406eae2cc5a785e1373a","observedAt":"2026-10-28T07:16:39.17+00:00","statement":{"source":"euvd","id":"EUVD-2026-54722","aliases":["CVE-2026-52880","GHSA-w4c6-7r69-w7j9"],"title":"Klever-Go is the Go implementation of the Klever blockchain protocol. Versions from 1.7.14 through 1.7.17 are vulnerable to a remotely triggerable denial of service. Both REST APIs are started with the Gin Engine.Run convenience method, whi…","description":"Klever-Go is the Go implementation of the Klever blockchain protocol. Versions from 1.7.14 through 1.7.17 are vulnerable to a remotely triggerable denial of service. Both REST APIs are started with the Gin Engine.Run convenience method, which serves requests through Go's default HTTP server with no ReadHeaderTimeout, ReadTimeout, or MaxHeaderBytes configured. As a result, incoming connections that never complete their request headers are held open indefinitely. When a REST listener is reachable beyond localhost through the documented all-interface bind or a Docker port-publish deployment, a single unauthenticated client can open many slow-header connections and hold them open until server file descriptors are exhausted, preventing the API from accepting new connections. This renders the REST API unavailable to legitimate clients. This issue is fixed in version 1.7.18.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":null}],"references":["https://github.com/klever-io/klever-go/security/advisories/GHSA-w4c6-7r69-w7j9","https://github.com/klever-io/klever-go/releases/tag/v1.7.18"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-54722","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Aug 7, 2026, 10:53:41 PM","dateUpdated":"Aug 11, 2026, 1:22:30 AM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-54722","identifiers":["EUVD-2026-54722","CVE-2026-52880","GHSA-w4c6-7r69-w7j9"]},"retained":false,"historicalAffected":[]}],"coverage":[]}