CVE-2023-42442

JumpServer session replays download without authentication

MEDIUM
5.3
CVSS Score
Published: September 15, 2023 at 08:29 PM UTC
Updated: June 17, 2026 at 06:23 AM UTC
2 products affected across 2 vendorsJumpserverJumpserver

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Severity
MEDIUM5.3
Exploit prediction
EPSS 63%
SSVC
PoC

Description

JumpServer is an open source bastion host and a professional operation and maintenance security audit system. Starting in version 3.0.0 and prior to versions 3.5.5 and 3.6.4, session replays can download without authentication. Session replays stored in S3, OSS, or other cloud storage are not affected. The api `/api/v1/terminal/sessions/` permission control is broken and can be accessed anonymously. SessionViewSet permission classes set to `[RBACPermission | IsSessionAssignee]`, relation is or, so any permission matched will be allowed. Versions 3.5.5 and 3.6.4 have a fix. After upgrading, visit the api `$HOST/api/v1/terminal/sessions/?limit=1`. The expected http response code is 401 (`not_authenticated`).

Affected

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

3.0.0 ≤ v < 3.5.53.6.0 ≤ v < 3.6.4
Affected range stops below 3.5.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.6.4, so it looks safe — our inference, not a vendor statement
v < 3.5.5v < 3.6.4
Affected range stops below 3.5.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.6.4, 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

SSVCPoCAutomatablePartial impact

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

CVSS

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

Quick Info

StatusMODIFIED
CWE
CWE-287

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