Impact: When using multiple wildcards, combined with at least one parameter, a regular expression can be generated that is vulnerable to ReDoS. This backtracking vulnerability requires the second wildcard to be somewhere other than the end of the path. Unsafe examples: /*foo-*bar...
Product
debian/node-path-to-regexp vulnerabilities
5 published CVES affecting debian/node-path-to-regexp, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).
- Total
- 5
- Critical
- 0
- High
- 4
- Medium
- 1
- Low
- 0
- Unscored
- 0
- CISA KEV
- 0
Latest debian/node-path-to-regexp CVEs
Newest publication first
-
MediumCVSS 5.9 EPSS 0.37%
-
CVE-2026-4926 path-to-regexp vulnerable to Denial of Service via sequential optional groups
PublishedHighCVSS 7.5 EPSS 0.82%Impact: A bad regular expression is generated any time you have multiple sequential optional groups (curly brace syntax), such as {a}{b}{c}:z. The generated regex grows exponentially with the number of groups, causing denial of service. Patches: Fixed in version 8.4.0. Workaround...
-
HighCVSS 7.5 EPSS 0.53%
Impact: A bad regular expression is generated any time you have three or more parameters within a single segment, separated by something that is not a period (.). For example, /:a-:b-:c or /:a-:b-:c-:d. The backtrack protection added in path-to-regexp@0.1.12 only prevents ambigui...
-
HighCVSS 7.7 EPSS 0.79%
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...
-
HighCVSS 7.5 EPSS 0.93%
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...
Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.