Critical severityNVD Advisory· Published Jul 31, 2026· Updated Jul 31, 2026
vault-addr annotation SSRF -- webhook makes outbound HTTP call to attacker URL during admission; vault-serviceaccount enables cluster-wide SA token theft via TokenRequest API
CVE-2026-54725
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.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/bank-vaults/vault-secrets-webhookGo | < 1.23.1 | 1.23.1 |
Affected products
1- Range: <1.23.1
Patches
Vulnerability mechanics
References
4- github.com/advisories/GHSA-r2v3-8gwf-7ghmghsaADVISORY
- github.com/bank-vaults/vault-secrets-webhook/commit/76db45976fee0f54cafd94dffa425e6b542f65a0ghsax_refsource_MISCWEB
- github.com/bank-vaults/vault-secrets-webhook/releases/tag/v1.23.1ghsax_refsource_MISCWEB
- github.com/bank-vaults/vault-secrets-webhook/security/advisories/GHSA-r2v3-8gwf-7ghmghsax_refsource_CONFIRMWEB
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