CVE-2021-34801
MEDIUMCVSS 5.3/10EPSS 1.72%
Last modified
CVE-2021-34801 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Valine 1.4.14 allows remote attackers to cause a denial of service (application outage) by supplying a ua (aka User-Agent) value that only specifies the product and version.. EPSS estimates a 1.72% chance of exploitation in the next 30 days.
Description
Valine 1.4.14 allows remote attackers to cause a denial of service (application outage) by supplying a ua (aka User-Agent) value that only specifies the product and version.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Valine.Js | Valine | 1.4.14 |
References
- https://github.com/xCss/Valine/issues/366Exploit, Issue Tracking, Third Party Advisory
- https://github.com/xCss/Valine/issues/366Exploit, Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-34801?
Valine 1.4.14 allows remote attackers to cause a denial of service (application outage) by supplying a ua (aka User-Agent) value that only specifies the product and version.
How severe is CVE-2021-34801?
CVE-2021-34801 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.72% probability of exploitation in the next 30 days.
How do I fix CVE-2021-34801?
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-2021-34801?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST