CVE-2026-22728
Bitnami Sealed Secrets /v1/rotate can widen sealing scope to cluster-wide via attacker-controlled template annotations
Description
Bitnami Sealed Secrets is vulnerable to a scope-widening attack during the secret rotation (/v1/rotate) flow. The rotation handler derives the sealing scope for the newly encrypted output from untrusted spec.template.metadata.annotations present in the input SealedSecret. By submitting a victim SealedSecret to the rotate endpoint with the annotation sealedsecrets.bitnami.com/cluster-wide=true injected into the template metadata, a remote attacker can obtain a rotated version of the secret that is cluster-wide. This bypasses original "strict" or "namespace-wide" constraints, allowing the attacker to retarget and unseal the secret in any namespace or under any name to recover the plaintext credentials.
How to fix CVE-2026-22728
To remediate CVE-2026-22728, upgrade the affected package to a fixed version below.
- —upgrade to 0.36.0 or later
- —upgrade to 0.36.0 or later
- —upgrade to 0.36.0 or later
Is CVE-2026-22728 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 0.36.0
- from 0, < 0.36.0
- from 0, < 0.36.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |