ubuntu-cve-2026-45822
Vulnerability from osv_ubuntu
Published
2026-06-30 09:16
Modified
2026-07-01 21:24
Summary
Details

decode-uri-component through 0.4.1 is vulnerable to denial of service. The decode() function splits input on '%' producing N tokens and calls decodeComponents(), exhibiting super-linear parsing time: 200 '%ab' tokens takes approximately 0.7s, 700 tokens approximately 6s, and 1400 tokens approximately 33s. An attacker can cause significant CPU consumption and event-loop blocking via crafted input.

Severity
6.6 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/S:N/AU:Y/R:U/V:D/RE:M/U:Amber
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "node-source-map-resolve",
            "binary_version": "0.6.0+~cs2.7.3-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "node-source-map-resolve",
        "purl": "pkg:deb/ubuntu/node-source-map-resolve@0.6.0+~cs2.7.3-2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.6.0+~cs2.7.2-2",
        "0.6.0+~cs2.7.3-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "node-source-map-resolve",
            "binary_version": "0.6.0+~cs2.7.3-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "node-source-map-resolve",
        "purl": "pkg:deb/ubuntu/node-source-map-resolve@0.6.0+~cs2.7.3-2?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.6.0+~cs2.7.3-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "node-source-map-resolve",
            "binary_version": "0.6.0+~cs2.7.3-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "node-source-map-resolve",
        "purl": "pkg:deb/ubuntu/node-source-map-resolve@0.6.0+~cs2.7.3-2?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.6.0+~cs2.7.3-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "node-source-map-resolve",
            "binary_version": "0.6.0+~cs2.7.3-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "node-source-map-resolve",
        "purl": "pkg:deb/ubuntu/node-source-map-resolve@0.6.0+~cs2.7.3-2?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.6.0+~cs2.7.3-2"
      ]
    }
  ],
  "aliases": [],
  "details": "decode-uri-component through 0.4.1 is vulnerable to denial of service. The decode() function splits input on \u0027%\u0027 producing N tokens and calls decodeComponents(), exhibiting super-linear parsing time: 200 \u0027%ab\u0027 tokens takes approximately 0.7s, 700 tokens approximately 6s, and 1400 tokens approximately 33s. An attacker can cause significant CPU consumption and event-loop blocking via crafted input.",
  "id": "UBUNTU-CVE-2026-45822",
  "modified": "2026-07-01T21:24:53Z",
  "published": "2026-06-30T09:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-45822"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-45822"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/SamVerschueren/decode-uri-component/blob/00662938dc7c6241547ae8abce7785cc13ffd3f6/index.js"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/SamVerschueren/decode-uri-component/commit/fa479dafeede7bedf04e5c89aa78f2a78c664005"
    },
    {
      "type": "REPORT",
      "url": "https://www.npmjs.com/package/decode-uri-component"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/S:N/AU:Y/R:U/V:D/RE:M/U:Amber",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-45822"
  ]
}



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