CVE-2025-62879: A vulnerability has been identified within the Rancher Backup Operator, resulting in the leakage of S3 tokens

Routine

MEDIUM 6.8UPGRADE

CVE-2025-62879 is a medium-severity flaw (CVSS 6.8) affecting rancher backup and restore operator. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability has been identified within the Rancher Backup Operator, resulting in the leakage of S3 tokens (both accessKey and secretKey) into the rancher-backup-operator pod's logs.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.8 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.4% (top 71%)
CISA exploited list	No
Weakness	CWE-532
Published	2026-03-04
Last modified	2026-06-17

Publisher (CNA): SUSE · Vendor: suse

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-04 16:16 UTCPublished CVE record published
2026-06-17 09:52 UTCUpdated Record last modified

suse rancher backup and restore operator UPGRADE

Affected: >= 6.0.0 and < 6.0.3 · >= 7.0.0 and < 7.0.5 · >= 8.0.0 and < 8.1.2 · >= 9.0.0 and < 9.0.1

Fixed in: 6.0.3, 7.0.5, 8.1.2, 9.0.1

Safe to downgrade to: a release before 6.0.0

1. Check installed version

apt-cache policy rancher-backup-and-restore-operator || rpm -q rancher-backup-and-restore-operator || rancher-backup-and-restore-operator --version

2. UPGRADE to 6.0.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade rancher-backup-and-restore-operator

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade rancher-backup-and-restore-operator

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 6.0.0 (Debian / Ubuntu)

apt-cache madison rancher-backup-and-restore-operator sudo apt install rancher-backup-and-restore-operator=<VERSION_BEFORE_6.0.0> sudo apt-mark hold rancher-backup-and-restore-operator

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list rancher-backup-and-restore-operator sudo dnf downgrade rancher-backup-and-restore-operator-<VERSION_BEFORE_6.0.0> sudo dnf versionlock add rancher-backup-and-restore-operator

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-62879?

rancher backup and restore operator: upgrade to 6.0.3, 7.0.5, 8.1.2, 9.0.1. Exact commands for each OS are on this page.

Is CVE-2025-62879 being exploited?

CVE-2025-62879 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-62879 affect?

CVE-2025-62879 affects rancher backup and restore operator. Severity is medium (CVSS 6.8). A vulnerability has been identified within the Rancher Backup Operator, resulting in the leakage of S3 tokens (both accessKey and secretKey) into the rancher-backup-operator pod's logs.

How urgent is CVE-2025-62879?

Priority 31/100. No elevated risk signals yet.

Software pages

Rancher vulnerabilities

References

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