CVE-2026-31798

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CVSS 3.1

5.0 medium

EPSS

<1%p1

Published

Mar 13, 2026 (Mar 13, 2026)

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.

Vendors: fit2cloud
Products: jumpserver
Weakness: CWE-295
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

NVD CVE.org GitHub PoCs EPSS (0.1%)

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