CVEvulnerability
CVE-2026-115319
2.0 LOW
Official page ↗
- Status
- Deferred
- Published
- 2026-10-22
- Last modified
- 2026-10-29
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 2.0 LOW — CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 2.5 LOW — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-407
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.
Related
Weakness · CWE (1)
- CWE-407 Inefficient Algorithmic Complexity weakness
References
- https://github.com/junegunn/fzf github.com
- https://github.com/junegunn/fzf/blob/v0.74.5/src/options.go#L1680-L1736 github.com
- https://github.com/junegunn/fzf/commit/b412a450538e5f4a1d7057732e75d945dafa18a6 github.com
- https://www.vulncheck.com/advisories/fzf-0.36.0-through-0.74.5-denial-of-service-via-maskactioncontents www.vulncheck.com