S3 Token Leakage Vulnerability in Rancher Backup Operator by SUSE
CVE-2025-62879

6.8MEDIUM

Key Information:

Vendor

Suse
Status
Rancher
Vendor
CVE Published:
4 March 2026

What is CVE-2025-62879?

A security flaw has been detected in the Rancher Backup Operator that exposes S3 tokens, including accessKey and secretKey, in the logs of the rancher-backup-operator pod. This vulnerability could permit unauthorized access to cloud storage resources, posing a significant threat to the confidentiality and integrity of sensitive data managed by the operator. Monitoring and addressing this issue promptly is crucial for securing cloud environments against potential exploits.

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Affected Version(s)

Rancher 9.0.0 < 9.0.1

Rancher 8.0.0 < 8.1.2

Rancher 7.0.0 < 7.0.5

References

https://bugzilla.suse.com/show_bug.cgi?id=CVE-2025-62879
https://github.com/advisories/GHSA-wj3p-5h3x-c74q

CVSS V3.1

Score:
6.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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