Exposure of SSH credentials in Rancher/FleetGHSA-wm2r-rp98-8pmh
GHSA-wm2r-rp98-8pmh is a security vulnerability in github.com/rancher/rancher. A fix is available for github.com/rancher/rancher — see the affected versions and patch details below.
Real-World Exposure
github.com/rancher/rancher🐹github.com/rancher/rancherReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.
Description
Impact
This vulnerability only affects customers using Fleet for continuous delivery with authenticated Git and/or Helm repositories.
A security vulnerability (CVE-2022-29810) was discovered in go-getter library in versions prior to v1.5.11 that exposes SSH private keys in base64 format due to a failure in redacting such information from error messages. The vulnerable version of this library is used in Rancher through Fleet in versions of Fleet prior to v0.3.9. This issue affects Rancher versions 2.5.0 up to and including 2.5.12 and from 2.6.0 up to and including 2.6.3.
When Git and/or Helm authentication is configured in Fleet and Fleet is used to deploy a git repo through Continuous Delivery, the affected go-getter version will expose the configured SSH private key secret if Fleet fails to download the git repo due to a misconfigured URL. The exposed SSH key is logged in base64 format as a query parameter together with the git URL. The credentials can be seen in Rancher UI and in Fleet's deployment pod logs.
Patches
Patched versions include releases 2.5.13, 2.6.4 and later versions.
Workarounds
There is not a direct mitigation besides upgrading to the patched Rancher versions. Until you are able to upgrade, limit access in Rancher to trusted users and carefully validate the URLs you are using are correct. Please note that the SSH key might still be compromised in valid URLs if the service goes down or a connection error happens when pulling from the repos.
Note: If you believe that SSH keys might have been exposed in your environment, it's highly advised to rotate them.
Credits
This issue was found and reported by Dagan Henderson from Raft Engineering.
For more information
If you have any questions or comments about this advisory:
- Reach out to SUSE Rancher Security team for security related inquiries.
- Open an issue in Rancher repository.
- Verify our support matrix and product support lifecycle.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/rancher/rancher | all versions | 2.5.13go get github.com/rancher/rancher@v2.5.13 |
| 🐹Go | github.com/rancher/rancher | ≥ 2.6.0&&< 2.6.4 | 2.6.4go get github.com/rancher/rancher@v2.6.4 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/rancher/rancher, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update github.com/rancher/rancher to 2.5.13 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-wm2r-rp98-8pmh is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
Frequently Asked Questions
Is GHSA-wm2r-rp98-8pmh in your dependencies?
Find it across Go, including transitive dependencies.