CVE-2026-22728
MEDIUM
GHSA-465p-v42x-3fmj
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Lifecycle Timeline
3Description
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.
Analysis
Bitnami Sealed Secrets improperly validates user-supplied annotations during secret rotation, allowing authenticated attackers to escalate secret scope from namespace-wide or strict constraints to cluster-wide. An attacker can inject a malicious annotation into the rotation request to obtain a rotated secret accessible across any namespace, potentially enabling lateral movement and unauthorized access to sensitive credentials throughout the cluster.
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.
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