CVE-2026-31798
5.0 · MEDIUMOverview
CVE-2026-31798 is a medium-severity vulnerability affecting fit2cloud jumpserver. It was published on March 13, 2026 and has a CVSS 3.1 base score of 5.0 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
JumpServer is an open source bastion host and an operation and maintenance security audit system. Prior to v4.10.16-lts, JumpServer improperly validates certificates in the Custom SMS API Client. When JumpServer sends MFA/OTP codes via Custom SMS API, an attacker can intercept the request and capture the verification code BEFORE it reaches the user's phone. This vulnerability is fixed in v4.10.16-lts.
Remediation
Check the references section for vendor advisories and patches from fit2cloud. Update jumpserver to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| fit2cloud | jumpserver | >= 0, < 4.10.16 | Affected |
Frequently Asked Questions
What is CVE-2026-31798?
CVE-2026-31798 is a medium-severity vulnerability affecting fit2cloud jumpserver. It was published on March 13, 2026 and has a CVSS 3.1 base score of 5.0 (MEDIUM).
How severe is CVE-2026-31798?
This vulnerability has a CVSS 3.1 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-31798?
Check the references section for vendor advisories and patches from fit2cloud. Update jumpserver to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-31798?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-31798 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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