CVE-2021-25742
HIGHCVSS 7.1/10EPSS 1.78%
Last modified
CVE-2021-25742 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use the custom snippets feature to obtain all secrets in the cluster.. EPSS estimates a 1.78% chance of exploitation in the next 30 days.
Description
A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use the custom snippets feature to obtain all secrets in the cluster.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Kubernetes | Ingress-Nginx | < 0.49.1 |
| Kubernetes | Ingress-Nginx | 1.0.0 |
| Netapp | Trident | All versions |
References
- https://github.com/kubernetes/ingress-nginx/issues/7837Exploit, Issue Tracking, Mitigation, Third Party Advisory
- https://groups.google.com/g/kubernetes-security-announce/c/mT4JJxi9tQYMailing List, Mitigation, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20211203-0001/Third Party Advisory
- https://github.com/kubernetes/ingress-nginx/issues/7837Exploit, Issue Tracking, Mitigation, Third Party Advisory
- https://groups.google.com/g/kubernetes-security-announce/c/mT4JJxi9tQYMailing List, Mitigation, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20211203-0001/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-25742?
A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use the custom snippets feature to obtain all secrets in the cluster.
How severe is CVE-2021-25742?
CVE-2021-25742 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 1.78% probability of exploitation in the next 30 days.
How do I fix CVE-2021-25742?
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-2021-25742?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST