CVE-2026-31798

MediumCVSS 5.0/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 5.0/10CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Mar 13, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2026-31798: Medium severity, CVSS 5.0 | Vulnix