CVE-2026-22728 — sealed-secrets /v1/rotate can widen sealing scope to cluster-wide via attacker-controlled template annotations

Description (CNA)

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 (CNA)

Vendor / product	Versions
Bitnami / sealed-secrets	affected 0.35.0 before <0.36.0

CWE

CWE-284

References

https://github.com/bitnami-labs/sealed-secrets/security/advisories/GHSA-465p-v42x-3fmj

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.