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    CVE-2026-31798

    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.

    Published:Mar 13, 2026
    Last Modified:Mar 23, 2026
    EPS:Mar 13, 2026
    EPSS Score:0.0002
    CVSS Score:5

    Affected Products

    Vendor
    Fit2cloud
    Product
    Jumpserver
    Vendor
    Jumpserver
    Product
    Jumpserver

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-295 Improper Certificate Validation

    Related CVEs

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    CVE-2025-58044 (CVSS 5.5) — JumpServer is an open source bastion host and an operation and maintenance security audit system. Prior to v3.…
    CVE-2025-62795 (CVSS 7.1) — JumpServer is an open source bastion host and an operation and maintenance security audit system. Prior to v3.…
    CVE-2025-62712 (CVSS 9.6) — JumpServer is an open source bastion host and an operation and maintenance security audit system. In JumpServe…
    CVE-2025-27095 (CVSS 4.3) — JumpServer is an open source bastion host and an operation and maintenance security audit system. Prior to 4.8…
    CVE-2024-40628 (CVSS 10) — JumpServer is an open-source Privileged Access Management (PAM) tool that provides DevOps and IT teams with on…
    CVE-2024-40629 (CVSS 10) — JumpServer is an open-source Privileged Access Management (PAM) tool that provides DevOps and IT teams with on…
    CVE-2024-29202 (CVSS 9.9) — JumpServer is an open source bastion host and an operation and maintenance security audit system. Attackers ca…
    CVE-2024-29201 (CVSS 9.9) — JumpServer is an open source bastion host and an operation and maintenance security audit system. Attackers ca…
    CVE-2024-29020 (CVSS 4.6) — JumpServer is an open source bastion host and an operation and maintenance security audit system. An authorize…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High