CVE-2021-23424
HIGHCVSS 7.5/10EPSS 1.98%
Last modified
CVE-2021-23424 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. This affects all versions of package ansi-html. If an attacker provides a malicious string, it will get stuck processing the input for an extremely long time.. EPSS estimates a 1.98% chance of exploitation in the next 30 days.
Description
This affects all versions of package ansi-html. If an attacker provides a malicious string, it will get stuck processing the input for an extremely long time.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Ansi-Html Project | Ansi-Html | < 0.0.8 |
References
- https://github.com/Tjatse/ansi-html/issues/19Exploit, Issue Tracking, Third Party Advisory
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1567198Exploit, Third Party Advisory
- https://snyk.io/vuln/SNYK-JS-ANSIHTML-1296849Exploit, Third Party Advisory
- https://github.com/Tjatse/ansi-html/issues/19Exploit, Issue Tracking, Third Party Advisory
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1567198Exploit, Third Party Advisory
- https://snyk.io/vuln/SNYK-JS-ANSIHTML-1296849Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-23424?
This affects all versions of package ansi-html. If an attacker provides a malicious string, it will get stuck processing the input for an extremely long time.
How severe is CVE-2021-23424?
CVE-2021-23424 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.98% probability of exploitation in the next 30 days.
How do I fix CVE-2021-23424?
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-2021-23424?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST