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CVE-2020-26309: nope-validator Regular Expression Denial of Service vulnerability

October 26, 2024 (updated October 31, 2025)

Nope is a JavaScript validator. Versions 0.11.3 and prior contain one or more regular expressions that are vulnerable to Regular Expression Denial of Service (ReDoS). This vulnerability is fixed in 0.12.1.

References

  • github.com/advisories/GHSA-3phv-83cj-p8p7
  • github.com/ftonato/nope-validator
  • github.com/ftonato/nope-validator/commit/4564b7444dcd92769e5c5b80420469c9f18b7a05
  • github.com/ftonato/nope-validator/commit/c8af9f93abe8f4786f8f69d2b0518f8ca3652f44
  • github.com/ftonato/nope-validator/issues/352
  • nvd.nist.gov/vuln/detail/CVE-2020-26309
  • securitylab.github.com/advisories/GHSL-2020-303-redos-nope-validator

Code Behaviors & Features

Detect and mitigate CVE-2020-26309 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →

Affected versions

All versions before 0.12.1

Fixed versions

  • 0.12.1

Solution

Upgrade to version 0.12.1 or above.

Impact 7.5 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Learn more about CVSS

Weakness

  • CWE-1333: Inefficient Regular Expression Complexity

Source file

npm/nope-validator/CVE-2020-26309.yml

Spotted a mistake? Edit the file on GitLab.

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