GHSA-mvmf-94v6-879g

Source

https://github.com/advisories/GHSA-mvmf-94v6-879g

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-mvmf-94v6-879g/GHSA-mvmf-94v6-879g.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-mvmf-94v6-879g

Aliases

Published

2026-06-30T15:30:44Z

Modified

2026-10-01T20:56:21Z

Severity

5.7 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator

Summary

fzf vulnerable to denial of service through quadratic HTTP request-body accumulation

Details

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.

Database specific

{
    "cwe_ids":  [
        "CWE-407"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-09-30T23:52:48Z",
    "nvd_published_at":  "2026-06-30T13:19:13Z",
    "severity":  "MODERATE"
}

References

Affected packages

Go / github.com/junegunn/fzf

Package

Name: github.com/junegunn/fzf; View open source insights on deps.dev
Purl: pkg:golang/github.com/junegunn/fzf

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

0.73.1

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-mvmf-94v6-879g/GHSA-mvmf-94v6-879g.json"