CVE-2026-54725
Critical
Description
vault-secrets-webhook is a Kubernetes mutating webhook that makes direct secret injection into Pods possible. Prior to 1.23.1, parseVaultConfig() in pkg/webhook/config.go accepts the vault.security.banzaicloud.io/vault-addr annotation, MutateConfigMap and MutateSecret call newVaultClient in pkg/webhook/webhook.go, and vault.security.banzaicloud.io/vault-serviceaccount can cause a ServiceAccount JWT to be sent to an attacker-controlled Vault address. This issue is fixed in version 1.23.1.
SeverityCritical
CVSS9.6
Exploit probability—
ProductGithub.com/bank-vaults/vault-secrets-webhook
PublishedJul 31, 2026
First seenJul 31, 2026
Weakness typeCWE-918Server-side request forgery (SSRF)
How to fix
Update
- github.com/bank-vaults/vault-secrets-webhook1.23.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| github.com/bank-vaults/vault-secrets-webhookGo | v < 1.23.1 | 1.23.1 |
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