CVE catalog

CVE-2026-4923

Impact: When using multiple wildcards, combined with…

[CVE catalog]

Impact: When using multiple wildcards, combined with at least one parameter, a regular expression can be generated that is vulnerable to ReDoS. This backtracking vulnerability requires the second wildcard to be somewhere other than the end of the path. Unsafe examples: /*foo-*bar-:baz /*a-:b-*c-:d /x/*a-:b/*c/y Safe examples: /*foo-:bar /*foo-:bar-*baz Patches: Upgrade to version 8.4.0. Workarounds: If you are using multiple wildcard parameters, you can check the regex output with a tool such as https://makenowjust-labs.github.io/recheck/playground/ to confirm whether a path is vulnerable.

Severity
Medium · CVSS 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
Source
[NVD] · [CVE record]
EPSS
0.36% · 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-path-to-regexp",
      "status": "fixed",
      "release": "sid",
      "version": "8.4.2-1"
    },
    {
      "name": "node-path-to-regexp",
      "status": "fixed",
      "release": "forky",
      "version": "8.4.2-1"
    },
    {
      "name": "node-path-to-regexp",
      "status": "vulnerable",
      "release": "trixie",
      "version": "6.3.0-1"
    },
    {
      "name": "node-path-to-regexp",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "6.2.1-1"
    }
  ],
  "fixed_versions": [
    {
      "bug": 1132020,
      "name": "node-path-to-regexp",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "8.4.0-1"
    },
    {
      "bug": 1132020,
      "name": "node-path-to-regexp",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "8.4.0-1"
    },
    {
      "bug": 1132020,
      "name": "node-path-to-regexp",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": 1132020,
      "name": "node-path-to-regexp",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": ""
    }
  ],
  "distribution_packages": [
    {
      "name": "node-path-to-regexp",
      "ecosystem": "cpe",
      "fixed_version": "not yet fixed"
    },
    {
      "name": "path-to-regexp",
      "ecosystem": "cpe",
      "fixed_version": "8.4.0"
    }
  ]
}

[Debian bug #1132020]

Publisher notes

[trixie] node-path-to-regexp: Minor issue [bookworm] node-path-to-regexp: Minor issue

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

  • [node-path-to-regexp]Unknown
    Details (2)

    • 6.2.1-1 · all · bookworm

      Affected

      nvd · node-path-to-regexp · debian · bookworm; nvd · node-path-to-regexp · debian · 12

    • 6.2.1-1 · all · bookworm

      Affected

      nvd · node-path-to-regexp · debian · bookworm; nvd · node-path-to-regexp · debian · 12

[Debian 13 (Trixie)]

  • [node-path-to-regexp]Unknown
    Details (2)

    • 6.3.0-1 · all · trixie

      Affected

      nvd · node-path-to-regexp · debian · 13

    • 6.3.0-1 · all · trixie

      Affected

      nvd · node-path-to-regexp · debian · 13

Observed:

References

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