GHSA-3W8Q-XQ97-5J7X

Vulnerability from github – Published: 2025-12-03 16:57 – Updated: 2025-12-04 16:23
VLAI
Summary
Rhino has high CPU usage and potential DoS when passing specific numbers to `toFixed()` function
Details

When an application passed an attacker controlled float poing number into the toFixed() function, it might lead to high CPU consumption and a potential Denial of Service.

Small numbers go through this call stack: NativeNumber.numTo > DToA.JS_dtostr > DToA.JS_dtoa > DToA.pow5mult where pow5mult attempts to raise 5 to a ridiculous power.

Example code: (4.47118444E-314).toFixed(2)

Severity
2.7 (Low)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.mozilla:rhino"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.7.14.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.mozilla:rhino"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.7.15"
            },
            {
              "fixed": "1.7.15.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.mozilla:rhino"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.8.0"
            },
            {
              "fixed": "1.8.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.8.0"
      ]
    }
  ],
  "aliases": [
    "CVE-2025-66453"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-12-03T16:57:50Z",
    "nvd_published_at": "2025-12-03T20:16:26Z",
    "severity": "LOW"
  },
  "details": "When an application passed an attacker controlled float poing number into the `toFixed()` function, it might lead to high CPU consumption and a potential Denial of Service.\n\nSmall numbers go through this call stack: `NativeNumber.numTo \u003e DToA.JS_dtostr \u003e DToA.JS_dtoa \u003e DToA.pow5mult`\nwhere `pow5mult` attempts to raise `5` to a ridiculous power.\n\nExample code: `(4.47118444E-314).toFixed(2)`",
  "id": "GHSA-3w8q-xq97-5j7x",
  "modified": "2025-12-04T16:23:15Z",
  "published": "2025-12-03T16:57:50Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/mozilla/rhino/security/advisories/GHSA-3w8q-xq97-5j7x"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-66453"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mozilla/rhino/commit/2bcf4c43deace35f1f57d86377c6767b0608986e"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mozilla/rhino"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Rhino has high CPU usage and potential DoS when passing specific numbers to `toFixed()` function"
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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