fzf is vulnerable to a Denial of Service (DoS) due to inefficient HTTP body processing in the --listen mode due to inefficient HTTP body processing using repeated string concatenation, resulting in quadratic time complex…
CVSS 4.0MEDIUM 5.7·Local·Low privileges·No interaction·EPSS 0.00378·Published 2026-06-30·Fixed in 0.73.1CWE-407
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.