{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0.36.0"
                  },
                  {
                    "last_affected": "0.74.5"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              },
              {
                "range": [
                  {
                    "fixed": "b412a450538e5f4a1d7057732e75d945dafa18a6"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              }
            ]
          },
          "events": [
            {
              "introduced": "20230117636c9dfa3ed6f6428c5bc4c51b02f60a"
            },
            {
              "last_affected": "c0a193e031f01fb50bf6f7be4381990a3753f7cf"
            },
            {
              "fixed": "b412a450538e5f4a1d7057732e75d945dafa18a6"
            }
          ],
          "repo": "https://github.com/junegunn/fzf",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-407"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115319.json"
  },
  "details": "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.",
  "id": "CVE-2026-115319",
  "modified": "2026-10-23T02:30:25.433601772Z",
  "published": "2026-10-22T10:57:40.288Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115319.json"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/junegunn/fzf"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/junegunn/fzf/blob/v0.74.5/src/options.go#L1680-L1736"
    },
    {
      "type": "FIX",
      "url": "https://github.com/junegunn/fzf/commit/b412a450538e5f4a1d7057732e75d945dafa18a6"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-115319"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/fzf-0.36.0-through-0.74.5-denial-of-service-via-maskactioncontents"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "fzf 0.36.0 through 0.74.5 Denial of Service via maskActionContents"
}