CVE-2021-25952
CRITICALCVSS 9.8/10EPSS 3.34%
Last modified
CVE-2021-25952 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Prototype pollution vulnerability in ‘just-safe-set’ versions 1.0.0 through 2.2.1 allows an attacker to cause a denial of service and may lead to remote code execution.. EPSS estimates a 3.34% chance of exploitation in the next 30 days.
Description
Prototype pollution vulnerability in ‘just-safe-set’ versions 1.0.0 through 2.2.1 allows an attacker to cause a denial of service and may lead to remote code execution.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Just-Safe-Set Project | Just-Safe-Set | >= 1.0.0, <= 2.2.1 |
References
- https://github.com/angus-c/just/commit/dd57a476f4bb9d78c6f60741898dc04c71d2eb53Patch, Third Party Advisory
- https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25952Exploit, Third Party Advisory
- https://github.com/angus-c/just/commit/dd57a476f4bb9d78c6f60741898dc04c71d2eb53Patch, Third Party Advisory
- https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25952Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-25952?
Prototype pollution vulnerability in ‘just-safe-set’ versions 1.0.0 through 2.2.1 allows an attacker to cause a denial of service and may lead to remote code execution.
How severe is CVE-2021-25952?
CVE-2021-25952 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.34% probability of exploitation in the next 30 days.
How do I fix CVE-2021-25952?
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-2021-25952?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST