What’s Vulnerable › Vulnerabilities

CVE-2024-52798: path-to-regexp Unpatched `path-to-regexp` ReDoS in 0.1.x

• Severity: high (CVSS 7.7 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-12-05 · updated 2026-06-17
• Weakness: CWE-1333

Description

path-to-regexp turns path strings into a regular expressions. In certain cases, path-to-regexp will output a regular expression that can be exploited to cause poor performance. The regular expression that is vulnerable to backtracking can be generated in the 0.1.x release of path-to-regexp. Upgrade to 0.1.12. This vulnerability exists because of an incomplete fix for CVE-2024-45296.

Affected products

• path-to-regexp: before 0.1.12 — fixed in 0.1.12
• Npm Path-To-Regexp: before 0.1.12 — fixed in 0.1.12

How to fix

Upgrade to a fixed version: path-to-regexp 0.1.12; Npm Path-To-Regexp 0.1.12. Check the vendor advisory for mitigations.

References

• https://github.com/pillarjs/path-to-regexp/commit/f01c26a013b1889f0c217c643964513acf17f6a4
• https://github.com/pillarjs/path-to-regexp/security/advisories/GHSA-rhx6-c78j-4q9w
• https://security.netapp.com/advisory/ntap-20250124-0002/

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