GHSA-J3V9-6GC7-VF5F

Vulnerability from github – Published: 2025-05-16 00:31 – Updated: 2025-05-16 17:44
VLAI?
Summary
Meteor Affected By Inefficient Regular Expression Complexity
Details

A vulnerability was found in Meteor up to 3.2.1 and classified as problematic. This issue affects the function Object.assign of the file packages/ddp-server/livedata_server.js. The manipulation of the argument forwardedFor leads to inefficient regular expression complexity. The attack may be initiated remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 3.2.2 is able to address this issue. The identifier of the patch is f7ea6817b90952baaea9baace2a3b4366fee6a63. It is recommended to upgrade the affected component.

Severity ?
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
6.3 (Medium)
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Show details on source website
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "meteor"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "3.2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-4727"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-05-16T17:44:54Z",
    "nvd_published_at": "2025-05-15T23:15:59Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability was found in Meteor up to 3.2.1 and classified as problematic. This issue affects the function Object.assign of the file packages/ddp-server/livedata_server.js. The manipulation of the argument forwardedFor leads to inefficient regular expression complexity. The attack may be initiated remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 3.2.2 is able to address this issue. The identifier of the patch is f7ea6817b90952baaea9baace2a3b4366fee6a63. It is recommended to upgrade the affected component.",
  "id": "GHSA-j3v9-6gc7-vf5f",
  "modified": "2025-05-16T17:44:54Z",
  "published": "2025-05-16T00:31:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-4727"
    },
    {
      "type": "WEB",
      "url": "https://github.com/meteor/meteor/issues/13713"
    },
    {
      "type": "WEB",
      "url": "https://github.com/meteor/meteor/pull/13721"
    },
    {
      "type": "WEB",
      "url": "https://github.com/meteor/meteor/commit/f7ea6817b90952baaea9baace2a3b4366fee6a63"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/meteor/meteor"
    },
    {
      "type": "WEB",
      "url": "https://github.com/meteor/meteor/releases/tag/release/METEOR%403.2.2"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?ctiid.309029"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?id.309029"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?submit.570441"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Meteor Affected By Inefficient Regular Expression Complexity"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.



Detection rules are retrieved from Rulezet.