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CVE PROGRAM SOURCE RECORD5.0 Medium

CVE-2026-31798

JumpServer Improper Certificate Validation in Custom SMS API Client

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

jumpserver jumpserver

  • < 4.10.16-ltsaffected

References