What’s Vulnerable › Vulnerabilities

CVE-2023-46138: JumpServer default admin user email leak password reset

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-10-31 · updated 2026-06-17
• Weakness: CWE-640

Description

JumpServer is an open source bastion host and maintenance security audit system that complies with 4A specifications. Prior to version 3.8.0, the default email for initial user admin is `admin[@]mycompany[.]com`, and users reset their passwords by sending an email. Currently, the domain `mycompany.com` has not been registered. However, if it is registered in the future, it may affect the password reset functionality. This issue has been patched in version 3.8.0 by changing the default email domain to `example.com`. Those who cannot upgrade may change the default email domain to `example.com` manually.

Affected products

• jumpserver: before 3.8.0 — fixed in 3.8.0

How to fix

Upgrade to a fixed version: jumpserver 3.8.0. Check the vendor advisory for mitigations.

References

• https://github.com/jumpserver/jumpserver/commit/15a5dda9e0cdbe2ac618a6b2a09df8928f485c88
• https://github.com/jumpserver/jumpserver/security/advisories/GHSA-9mrc-75cv-46cq
• https://github.com/jumpserver/jumpserver/commit/15a5dda9e0cdbe2ac618a6b2a09df8928f485c88
• https://github.com/jumpserver/jumpserver/security/advisories/GHSA-9mrc-75cv-46cq

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