Directory Traversal Affecting harvester package, versions <1.8.1-r1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CHAINGUARDLATEST-HARVESTER-17801454
- published3 Jul 2026
- disclosed13 May 2026
Introduced: 13 May 2026
CVE-2026-25705 (opens in a new tab)How to fix?
Upgrade Chainguard harvester to version 1.8.1-r1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream harvester package and not the harvester package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
A vulnerability has been identified in Rancher's Extensions where malicious code can be injected in Rancher through a path traversal in the compressedEndpoint field inside a UIPlugin deployment. A malicious UI extension could abuse that to: * Overwrite Rancher binaries or configuration to inject code.
Write to /var/lib/rancher/ to tamper with cluster state.
If hostPath volumes are mounted, write to the host node filesystem.
Use this issue to chain with other attack vectors.