What’s Vulnerable › Vulnerabilities
CVE-2026-22728: sealed-secrets /v1/rotate can widen sealing scope to cluster-wide via attacker-controlled template annotations
- Severity: medium (CVSS 4.9 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-02-26 · updated 2026-06-17
- Weakness: CWE-284
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.
Affected products
- Bitnami sealed-secrets: from 0.35.0 before <0.36.0 — fixed in <0.36.0
How to fix
Upgrade to a fixed version: Bitnami sealed-secrets <0.36.0. Check the vendor advisory for mitigations.
References
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