CVE-2025-62712

JumpServer Connection Token Leak Vulnerability

State
Published
Severity
9.6 Critical
Published
Oct 30, 2025
Updated
Oct 31, 2025
Reserved
Oct 20, 2025

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Description

JumpServer is an open source bastion host and an operation and maintenance security audit system. In JumpServer versions prior to v3.10.20-lts and v4.10.11-lts, an authenticated, non-privileged user can retrieve connection tokens belonging to other users via the super-connection API endpoint (/api/v1/authentication/super-connection-token/). When accessed from a web browser, this endpoint returns connection tokens created by all users instead of restricting results to tokens owned by or authorized for the requester. An attacker who obtains these tokens can use them to initiate connections to managed assets on behalf of the original token owners, resulting in unauthorized access and privilege escalation across sensitive systems. This vulnerability is fixed in v3.10.20-lts and v4.10.11-lts.

Scores

CVSSScoreVectorSource
3.19.6 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:NGitHub_M

Weaknesses

Affected Products

ProductVersions
jumpserverjumpserver
  • >= 4.0.0, < 4.10.11-ltsAffected
  • < 3.10.20-ltsAffected

References

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