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TI-2023-22911 Aliases CVE-2023-42820

Random seed leakage in Jumpserver

Priority MEDIUM 51CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-200.

Summary

JumpServer is an open source bastion host. This vulnerability is due to exposing the random number seed to the API, potentially allowing the randomly generated verification codes to be replayed, which could lead to password resets. If MFA is enabled users are not affect. Users not using local authentication are also not affected. Users are advised to upgrade to either version 2.28.19 or to 3.6.5. There are no known workarounds or this issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.06296 93rd percentileScored 2026-11-07
Fix Fixed jumpserver (jumpserver): 2.28.19, 3.6.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
jumpserverjumpserver2.24 to before 2.28.19; 3.0.0 to before 3.6.52.28.19, 3.6.5Patch availableCNA
  • jumpserver Vendorjumpserver Affected 2.24 to before 2.28.19; 3.0.0 to before 3.6.5 Fixed in 2.28.19, 3.6.5 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:fit2cloud:jumpserver:*:*:*:*:*:*:*:*2.24.0 to before 2.28.19; 3.0.0 to before 3.6.5Vulnerable1Panel-dev
  • cpe:2.3:a:fit2cloud:jumpserver:*:*:*:*:*:*:*:* Versions 2.24.0 to before 2.28.19; 3.0.0 to before 3.6.5 Vulnerable ·1Panel-dev

Remediation

  • Fix · CNA jumpserver (jumpserver) Fixed in 2.28.19, 3.6.5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-42820

References

Patch 1

Advisory 1

  • TI-2024-27040 Arbitrary File Read in Ansible Playbooks in Jumpserver CVSS 3.1CRITICAL 10.0
  • TI-2023-23378 Non-MFA account takeover via using only SSH public key to login in jumpserver CVSS 3.1CRITICAL 9.1
  • TI-2023-22607 JumpServer session replays download without authentication CVSS 3.1HIGH 8.2
  • TI-2024-27041 Arbitrary File Write in Ansible Playbooks leads to RCE in Jumpserver CVSS 3.1CRITICAL 10.0
  • TI-2024-19371 JumpServer vulnerable to Jinja2 template injection in Ansible leads to RCE in Celery CVSS 3.1CRITICAL 10.0
  • TI-2024-19370 JumpServer's insecure Ansible playbook validation leads to RCE in Celery CVSS 3.1CRITICAL 10.0
See all 27 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences