CVE-2025-62712

JumpServer Connection Token Leak Vulnerability

HIGH
8.1
CVSS Score
Published: October 30, 2025 at 04:08 PM UTC
Updated: October 19, 2026 at 01:10 PM UTC
2 products affected across 2 vendorsJumpserverJumpserver

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Severity
HIGH8.1
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3.10.204.0.0 ≤ v < 4.10.11
v < 3.10.20-lts
Affected range stops below 3.10.20-lts, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.10.11-lts, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-862

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