PT-2024-35449 · Unknown · Path-To-Regexp

Blakeembrey · Published 2024-12-05 · Updated 2025-12-17 · CVE-2024-52798

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions path-to-regexp versions 0.1.x through 0.1.11

Description The issue concerns a performance vulnerability in path-to-regexp, where certain inputs can generate regular expressions vulnerable to backtracking, leading to poor performance. This vulnerability exists due to an incomplete fix.

Recommendations Upgrade to version 0.1.12. As a temporary workaround, consider avoiding the use of two parameters within a single path segment when the separator is not . (e.g., no /:a-:b). Alternatively, define the regex used for both parameters and ensure they do not overlap to allow backtracking.

Exploit

Fix

Resource Exhaustion

DoS

Weakness Enumeration

CWE-400

CWE-1333

Related Identifiers

AZL-54017

AZL-54020

AZL-54036

BDU:2026-01468

CVE-2024-52798

GHSA-RHX6-C78J-4Q9W

Affected Products

Path-To-Regexp

References · 24

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/52xxx/CVE-2024-52798.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2024-52798 · Security Note
• https://osv.dev/vulnerability/AZL-54017 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2024-52798 · Security Note
• https://osv.dev/vulnerability/AZL-54036 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-APP-NPM-CVE-2024-52798 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-54020 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-52798 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2024-52798 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-rhx6-c78j-4q9w · Vendor Advisory
• https://wiki.astralinux.ru/x/ziLoD · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-01468 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-52798 · Vendor Advisory
• https://github.com/pillarjs/path-to-regexp · Note
• https://github.com/pillarjs/path-to-regexp/commit/f01c26a013b1889f0c217c643964513acf17f6a4 · Note