Vulnerability · Published Sep 9, 2024 · Assigned by GitHub_M

CVE-2024-45296path-to-regexp outputs backtracking regular expressions

High 7.5

In plain English

A high-severity regular-expression denial of service in path-to-regexp from pillarjs. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 61% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.9%top 39.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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. Because JavaScript is single threaded and regex matching runs on the main thread, poor performance will block the event loop and lead to a DoS. The bad regular expression is generated any time you have two parameters within a single segment, separated by something that is not a period (.). For users of 0.1, upgrade to 0.1.10. All other users should upgrade to 8.0.0.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12node-path-to-regexpno fix listedDEBIAN-CVE-2024-45296
Debian:13node-path-to-regexp6.3.0-1DEBIAN-CVE-2024-45296
Debian:14node-path-to-regexp6.3.0-1DEBIAN-CVE-2024-45296
Ubuntu:25.10node-expressno fix listedUBUNTU-CVE-2024-45296
Ubuntu:26.04:LTSnode-expressno fix listedUBUNTU-CVE-2024-45296
Ubuntu:26.10node-expressno fix listedUBUNTU-CVE-2024-45296
npmpath-to-regexp3.3.0GHSA-9wv6-86v2-598j
npmpath-to-regexp8.0.0GHSA-9wv6-86v2-598j
npmpath-to-regexp6.3.0GHSA-9wv6-86v2-598j
npmpath-to-regexp1.9.0GHSA-9wv6-86v2-598j
npmpath-to-regexp0.1.13GHSA-37ch-88jc-xwx2
npmpath-to-regexp0.1.10GHSA-9wv6-86v2-598j

Affected products (as reported)

VendorProductVersions
pillarjs path-to-regexp < 0.1.10>= 0.2.0, < 8.0.0

Weakness: CWE-1333 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References