{"id":"CVE-2026-78667","title":"When parsing a Range header containing a large number of small ranges, FileServer(FS), ServeContent, and ServeFile(FS) can consume an excessive amount of CPU.","summary":"When parsing a Range header containing a large number of small ranges, FileServer(FS), ServeContent, and ServeFile(FS) can consume an excessive amount of CPU.","severity":"none","published":"2026-10-08","updated":"2026-10-08","sourceUpdated":"2026-10-08T23:17:03.880","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-78667","references":[{"url":"https://go.dev/cl/847309","label":"security@golang.org"},{"url":"https://go.dev/issue/81858","label":"security@golang.org"},{"url":"https://groups.google.com/g/golang-announce/c/U2fTuyDJznI","label":"security@golang.org"},{"url":"https://pkg.go.dev/vuln/GO-2026-6609","label":"security@golang.org"}],"tags":["nvd"],"ingestedAt":"2026-10-09T00:19:50.976Z","slug":"CVE-2026-78667","body":"## Overview\n\nWhen parsing a Range header containing a large number of small ranges, FileServer(FS), ServeContent, and ServeFile(FS) can consume an excessive amount of CPU.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}