CVE-2026-115319

Name	CVE-2026-115319
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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
fzf (PTS)	bookworm	0.38.0-1	vulnerable
	trixie	0.60.3-1	vulnerable
	forky	0.74.4-1	vulnerable
	sid	0.74.5-1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
fzf	source	(unstable)	(unfixed)

Fixed by: https://github.com/junegunn/fzf/commit/b412a450538e5f4a1d7057732e75d945dafa18a6