VDB
DEBIAN-CVE-2026-4926
DEBIAN-CVE-2026-4926
PUBLISHED
CVSS 7.5 HIGH
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. Workarounds: Limit the number of sequential optional groups in route patterns. Avoid passing user-controlled input as route patterns.
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:11 | node-path-to-regexp | 6.2.0-2, 6.2.1-1, 6.3.0-1 |
| Debian:14 | node-path-to-regexp | 0, 6.3.0-1, 8.3.0-1 |
| Debian:12 | node-path-to-regexp | 8.4.0-1, 6.2.1-1, 6.3.0-1 |
| Debian:13 | node-path-to-regexp | 0, 6.3.0-1, 8.3.0-1 |
Exploit Intelligence
- trivity-report.html (github-poc)
Timeline
- Mar 26, 2026 CVE Published
- Apr 28, 2026 CVE Updated