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.
Scores
CVSS v3
5.0
EPSS
0.0002
EPSS Percentile
6.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-295
Status
published
Products (2)
fit2cloud/jumpserver
< 4.10.16
jumpserver/jumpserver
< 4.10.16-lts
Published
Mar 13, 2026
Tracked Since
Mar 14, 2026