CVE-2026-31798 — JumpServer Improper Certificate Validation in Custom SMS API Client

CVE-2026-31798

JumpServer Improper Certificate Validation in Custom SMS API Client PUBLISHED

Description (CNA)

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 (CNA)

Vendor / product	Versions
jumpserver / jumpserver	affected < 4.10.16-lts

CWE

CWE-295

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.