CVE-2026-35388
LOWCVSS 2.5/10EPSS 0.13%
Last modified
CVE-2026-35388 is a low-severity vulnerability rated 2.5/10 on the CVSS scale. OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions.. EPSS estimates a 0.13% chance of exploitation in the next 30 days.
Description
OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions.
Metrics
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Openbsd | Openssh | < 10.3 |
References
- https://marc.info/?l=openssh-unix-dev&m=177513443901484&w=2Third Party Advisory
- https://www.openssh.org/releasenotes.html#10.3p1Release Notes
- https://www.openwall.com/lists/oss-security/2026/04/02/3Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-35388?
OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions.
How severe is CVE-2026-35388?
CVE-2026-35388 has a CVSS score of 2.5/10 (LOW severity). The EPSS model estimates a 0.13% probability of exploitation in the next 30 days.
How do I fix CVE-2026-35388?
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-2026-35388?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST