CVE-2026-22728
sealed-secrets /v1/rotate can widen sealing scope to cluster-wide via attacker-controlled template annotations
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.
- Affected
- Bitnami · sealed-secrets
- CVSS v3.1 VMWARE
- 4.9 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N - EPSS
- 0.37% chance of exploitation in the next 30 days, 30th percentile
- Published
- 2026-02-26