CVE-2025-11230
HIGHCVSS 7.5/10EPSS 0.47%
Last modified
CVE-2025-11230 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Inefficient algorithm complexity in mjson in HAProxy allows remote attackers to cause a denial of service via specially crafted JSON requests.. EPSS estimates a 0.47% chance of exploitation in the next 30 days.
Description
Inefficient algorithm complexity in mjson in HAProxy allows remote attackers to cause a denial of service via specially crafted JSON requests.
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 | Update |
|---|---|---|---|
| Haproxy | Aloha Appliance | >= 14.5.0, < 14.5.33 | — |
| Haproxy | Aloha Appliance | >= 15.5.0, < 15.5.28 | — |
| Haproxy | Aloha Appliance | >= 16.5.0, < 16.5.19 | — |
| Haproxy | Aloha Appliance | >= 17.0.0, < 17.0.7 | — |
| Haproxy | Haproxy | >= 2.4.0, < 2.4.30 | — |
| Haproxy | Haproxy | >= 2.6.0, < 2.6.23 | — |
| Haproxy | Haproxy | >= 2.8.0, < 2.8.16 | — |
| Haproxy | Haproxy | >= 3.0.0, < 3.0.12 | — |
| Haproxy | Haproxy | >= 3.1.0, < 3.1.9 | — |
| Haproxy | Haproxy | >= 3.2.0, < 3.2.6 | — |
| Haproxy | Haproxy Enterprise | 2.4r1 | 1.0.0-253.271 |
| Haproxy | Haproxy Enterprise | 2.6r1 | 1.0.0-281.466 |
| Haproxy | Haproxy Enterprise | 2.8r1 | 1.0.0-302.234 |
| Haproxy | Haproxy Enterprise | 3.0r1 | 1.0.0-337.363 |
| Haproxy | Haproxy Enterprise | 3.1r1 | 1.0.0-345.233 |
| Haproxy | Kubernetes Ingress Controller | < 1.9.14-ee7 | — |
| Haproxy | Kubernetes Ingress Controller | < 3.1.12 | — |
| Haproxy | Kubernetes Ingress Controller | >= 1.10.10-ee1, < 1.11.12-ee10 | — |
| Haproxy | Kubernetes Ingress Controller | >= 3.0.0-ee1, < 3.0.15-ee4 | — |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2025-11230?
Inefficient algorithm complexity in mjson in HAProxy allows remote attackers to cause a denial of service via specially crafted JSON requests.
How severe is CVE-2025-11230?
CVE-2025-11230 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.47% probability of exploitation in the next 30 days.
How do I fix CVE-2025-11230?
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-2025-11230?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST