CVE-2026-26080
LOWCVSS 3.7/10EPSS 0.55%
Last modified
CVE-2026-26080 is a low-severity vulnerability rated 3.7/10 on the CVSS scale. HAProxy Community Edition 3.2.x through 3.3.x before 3.3.3 can enter a loop or crash because varint is mishandled. HAProxy Enterprise and ALOHA are also affected.. EPSS estimates a 0.55% chance of exploitation in the next 30 days.
Description
HAProxy Community Edition 3.2.x through 3.3.x before 3.3.3 can enter a loop or crash because varint is mishandled. HAProxy Enterprise and ALOHA are also affected.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Haproxy | Haproxy | >= 3.2, < 3.2.12 | — |
| Haproxy | Haproxy | >= 3.3, < 3.3.3 | — |
| Haproxy | Aloha | >= 17.0.0, < 17.0.18 | — |
| Haproxy | Aloha | >= 17.5.0, < 17.5.16 | — |
| Haproxy | Haproxy Enterprise | 3.2r1 | 1.0.0-353.334 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-26080?
HAProxy Community Edition 3.2.x through 3.3.x before 3.3.3 can enter a loop or crash because varint is mishandled. HAProxy Enterprise and ALOHA are also affected.
How severe is CVE-2026-26080?
CVE-2026-26080 has a CVSS score of 3.7/10 (LOW severity). The EPSS model estimates a 0.55% probability of exploitation in the next 30 days.
How do I fix CVE-2026-26080?
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-2026-26080?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST