Description (CNA)
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 complexity (O(n²)). A crafted POST request with many small segments can trigger excessive CPU usage during request handling.This allows a single malicious request to monopolize the single‑threaded HTTP server, blocking all other clients and resulting in denial of service. This issue was fixed in version 0.73.1.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| fzf / fzf | affected 0 before 0.73.1 |
CWE
CWE-407
References
- https://cert.pl/en/posts/2026/06/CVE-2026-53432
- https://github.com/junegunn/fzf
- https://github.com/junegunn/fzf/commit/7963a2c6586c0b9eaa89b8995de8f0e08cf8a4ce
ADP enrichment
No English description supplied.
No references supplied.