LOW 2.0 NVD
CVE-2026-115319
fzf 0.36.0 through 0.74.5 contains an inefficient algorithmic complexity vulnerability in maskActionContents that allows local attackers to exhaust the --listen
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.
References
- https://github.com/junegunn/fzf
- https://github.com/junegunn/fzf/blob/v0.74.5/src/options.go#L1680-L1736
- https://github.com/junegunn/fzf/commit/b412a450538e5f4a1d7057732e75d945dafa18a6
- https://www.vulncheck.com/advisories/fzf-0.36.0-through-0.74.5-denial-of-service-via-maska
This low severity vulnerability with a CVSS score of 2.0 was published on 2026-10-22 via NVD.
vulnfeed aggregates 17299 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.