{"id":"CVE-2026-115319","published":"2026-10-22T11:17:50.677","lastModified":"2026-10-22T17:40:46.877","description":"fzf 0.36.0 through 0.74.5 contains an inefficient algorithmic complexity vulnerability in maskActionContents that allows local attackers to exhaust the --listen HTTP server through quadratic string concatenation. Attackers can repeatedly send POST bodies of about 1 MB to the unauthenticated localhost port, blocking the single-threaded server for about 30 seconds each time.","cvssScore":2.5,"cvssSeverity":"LOW","cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L","cwes":["CWE-407"],"vendors":[],"products":[],"references":[{"url":"https://github.com/junegunn/fzf","tags":[]},{"url":"https://github.com/junegunn/fzf/blob/v0.74.5/src/options.go#L1680-L1736","tags":[]},{"url":"https://github.com/junegunn/fzf/commit/b412a450538e5f4a1d7057732e75d945dafa18a6","tags":[]},{"url":"https://www.vulncheck.com/advisories/fzf-0.36.0-through-0.74.5-denial-of-service-via-maskactioncontents","tags":[]}],"exploitRefs":[{"url":"https://github.com/junegunn/fzf","tags":[]},{"url":"https://github.com/junegunn/fzf/blob/v0.74.5/src/options.go#L1680-L1736","tags":[]},{"url":"https://github.com/junegunn/fzf/commit/b412a450538e5f4a1d7057732e75d945dafa18a6","tags":[]}],"hasPoc":true,"ai":null}