Paper/Archive/CVE-2026-54725

CVE-2026-54725

bank-vaults vault-secrets-webhook — 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

EPSS 0.4%public exploit CVSS 9.6

critical.is priorityof 100

CVSS 9.6 (CNA)9.6 / 10 × 3028.8 Not in CISA KEV+300.0 EPSS percentile 39.0.390 × 207.8 Exploit: SSVC poc+1010.0 SSVC exploitation: poc+100.0

Description · from the CVE record

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

ProductAffectedFixed inSource

vault-secrets-webhook< 1.23.1–CNA

Scores by source

GitHub_M (CNA)9.6CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: partial

References

exploitgithub.com/bank-vaults/vault-secrets-webhook/security/advisories/GHSA-r2v3-8gwf-7ghm refgithub.com/bank-vaults/vault-secrets-webhook/commit/76db45976fee0f54cafd94dffa425e6b542f65a0 refgithub.com/bank-vaults/vault-secrets-webhook/releases/tag/v1.23.1