CVE-2026-31798

MEDIUM EPSS 0.9%
Published Mar 13, 20263mo ago · Modified Jun 17, 20261w ago
5.0 CVSS 3.1
Medium
Find Similar
Published Mar 13, 2026 3mo ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
5.0
Exploitability
1.6
Impact
3.4
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Low
Integrity Low
Availability Low

Threat Intelligence

EPSS Exploit Probability
0.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-295

Affected Products 1

VendorProductVersionRange
fit2cloudjumpserver* <4.10.16

References 1

  • github.com https://github.com/jumpserver/jumpserver/security/advisories/GHSA-26pj-mmxw-w3w7
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.