Is CVE-2026-31798 actively exploited?

CVE-2026-31798 has no public evidence of in-the-wild exploitation as of 2026-03-18.

What is the CVSS score for CVE-2026-31798?

CVE-2026-31798 has a CVSS score of 5 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L.

How do I patch CVE-2026-31798?

Patch guidance is available from fit2cloud security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-31798.

Which products are affected by CVE-2026-31798?

1 product: fit2cloud jumpserver.

CVE-2026-31798 - remediation guidance & executive summary

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Attack Vector: network
Complexity: high
Privileges: none
User Action: required
Scope: unchanged
Confidentiality: low
Integrity: low
Availability: low
Weaknesses: CWE-295

Metadata

Primary Vendor: FIT2CLOUD
Published: 3/13/2026
Last Modified: 3/18/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2026-31798

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary