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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

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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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