CVE-2023-42442
JumpServer session replays download without authentication
- Published
- Sep 15, 2023
- Updated
- Sep 25, 2024
- Assigning CNA
- GitHub_M
- Evidence observed
- Aug 8, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:HHigh · next 30 days
- Percentile
- 99.1%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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`).
Sources
3- CVE-2023-42442Exploit
CVE-2023-42442 JumpServer Session 录像任意下载漏洞
- CVE-2023-42442Exploit
Go-based exploit for JumpServer unauthorized access vulnerability (CVE-2023-42442) with a single-command execution interface for penetration testing.
Responsible use
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