CVE-2021-33623
HIGHCVSS 7.5/10EPSS 2.85%
Last modified
CVE-2021-33623 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The trim-newlines package before 3.0.1 and 4.x before 4.0.1 for Node.js has an issue related to regular expression denial-of-service (ReDoS) for the .end() method.. EPSS estimates a 2.85% chance of exploitation in the next 30 days.
Description
The trim-newlines package before 3.0.1 and 4.x before 4.0.1 for Node.js has an issue related to regular expression denial-of-service (ReDoS) for the .end() method.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Trim-Newlines Project | Trim-Newlines | < 3.0.1 |
| Trim-Newlines Project | Trim-Newlines | >= 4.0.0, < 4.0.1 |
| Netapp | E-Series Performance Analyzer | All versions |
| Debian | Debian Linux | 10.0 |
References
- https://github.com/sindresorhus/trim-newlines/releases/tag/v4.0.1Patch, Release Notes
- https://lists.debian.org/debian-lts-announce/2022/12/msg00033.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210702-0007/Third Party Advisory
- https://github.com/sindresorhus/trim-newlines/releases/tag/v4.0.1Patch, Release Notes
- https://lists.debian.org/debian-lts-announce/2022/12/msg00033.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210702-0007/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-33623?
The trim-newlines package before 3.0.1 and 4.x before 4.0.1 for Node.js has an issue related to regular expression denial-of-service (ReDoS) for the .end() method.
How severe is CVE-2021-33623?
CVE-2021-33623 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.85% probability of exploitation in the next 30 days.
How do I fix CVE-2021-33623?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-33623?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST