CVE-2026-123281
HIGHCVSS 7.5/10
Last modified
CVE-2026-123281 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In JetBrains Datalore before 2026.4 notebook code could execute commands in the sidecar container via the mount broker.
Description
In JetBrains Datalore before 2026.4 notebook code could execute commands in the sidecar container via the mount broker
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| JetBrains | Datalore | < 2026.4 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-123281?
In JetBrains Datalore before 2026.4 notebook code could execute commands in the sidecar container via the mount broker
How severe is CVE-2026-123281?
CVE-2026-123281 has a CVSS score of 7.5/10 (HIGH severity).
How do I fix CVE-2026-123281?
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-2026-123281?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST