CVE catalog

CVE-2026-73089

Browserslist is a configuration tool for sharing…

[CVE catalog]

Browserslist is a configuration tool for sharing target browsers and Node.js versions between front-end tools. Prior to 4.28.7, index.js retains every distinct `(queries, context)` result in cache and every parseQueries() AST in parseCache without a size cap, TTL, or eviction, allowing an attacker who can influence repeated browserslist() query values, including valid since `<year>-<month>-<day>` queries, to bypass the caller-controlled BROWSERSLIST_DISABLE_CACHE mitigation and cause linear memory growth followed by an out-of-memory process crash. This issue is fixed in version 4.28.7.

Severity
High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
Source
[NVD] · [CVE record]
EPSS
0.66% · Oct 27, 2026

Projects and upstream resources

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence
Original provider fields
{
  "package_releases": [
    {
      "name": "node-browserslist",
      "status": "fixed",
      "release": "sid",
      "version": "4.28.7+~cs8.16.65-1"
    },
    {
      "name": "node-browserslist",
      "status": "fixed",
      "release": "forky",
      "version": "4.28.7+~cs8.16.65-1"
    },
    {
      "name": "node-browserslist",
      "status": "vulnerable",
      "release": "trixie",
      "version": "4.25.0+~cs6.3.22-1"
    },
    {
      "name": "node-browserslist",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "4.21.4+~cs6.1.17-2"
    }
  ],
  "fixed_versions": [
    {
      "bug": null,
      "name": "node-browserslist",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "4.28.7+~cs8.16.65-1"
    },
    {
      "bug": null,
      "name": "node-browserslist",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "4.28.7+~cs8.16.65-1"
    },
    {
      "bug": null,
      "name": "node-browserslist",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": null,
      "name": "node-browserslist",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": ""
    }
  ],
  "distribution_packages": [
    {
      "name": "browserslist",
      "ecosystem": "npm",
      "fixed_version": "4.28.7",
      "provider_record_id": "GHSA-C83G-RGW3-J3CX"
    },
    {
      "name": "node-browserslist",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "18.04",
      "versions": [
        "2.11.3-1",
        "2.11.3-1build3",
        "2.11.3-1build4"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2026-73089"
    },
    {
      "name": "node-browserslist",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "20.04",
      "versions": [
        "2.11.3-1build4"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2026-73089"
    },
    {
      "name": "node-browserslist",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "22.04",
      "versions": [
        "4.16.3+~cs5.4.72-3",
        "4.17.0+~cs5.6.76-1",
        "4.18.1+~cs5.1.2-1",
        "4.19.1+~cs5.1.2-1",
        "4.19.1+repack+~cs5.1.2-2",
        "4.19.3+~cs5.1.3-1"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2026-73089"
    },
    {
      "name": "node-browserslist",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "24.04",
      "versions": [
        "4.21.4+~cs6.1.17-2",
        "4.22.1+~cs6.1.28-1"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2026-73089"
    },
    {
      "name": "node-browserslist",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "26.04",
      "versions": [
        "4.25.2+~cs6.3.22-1",
        "4.26.0+~cs8.11.27-1",
        "4.27.0+~cs8.11.53-2",
        "4.28.1+~cs8.14.48-1"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2026-73089"
    }
  ]
}

Publisher notes

[trixie] node-browserslist: Minor issue [bookworm] node-browserslist: Minor issue

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

  • [node-browserslist]Unknown
    Details (2)

    • 4.21.4+~cs6.1.17-2 · all · bookworm

      Affected

      nvd · node-browserslist · debian · bookworm; nvd · node-browserslist · debian · 12

    • 4.21.4+~cs6.1.17-2 · all · bookworm

      Affected

      nvd · node-browserslist · debian · bookworm; nvd · node-browserslist · debian · 12

[Debian 13 (Trixie)]

  • [node-browserslist]Unknown
    Details (2)

    • 4.25.0+~cs6.3.22-1 · all · trixie

      Affected

      nvd · node-browserslist · debian · 13

    • 4.25.0+~cs6.3.22-1 · all · trixie

      Affected

      nvd · node-browserslist · debian · 13

Observed:

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]