Kubernetes Mutating Webhook Vulnerability in vault-secrets-webhook by Banzaicloud
CVE-2026-54725

9.6CRITICAL

Key Information:

Vendor

Bank-vaults

Status
Vault-secrets-webhook
Vendor
CVE Published:
31 July 2026

What is CVE-2026-54725?

The vault-secrets-webhook is a Kubernetes mutating webhook that allows direct secret injection into Pods. In versions prior to 1.23.1, the function parseVaultConfig() accepts annotations that can lead to a ServiceAccount JWT being sent to an attacker-controlled Vault address. This could potentially compromise sensitive credentials. Users are advised to upgrade to version 1.23.1 or later to mitigate this risk.

Affected Version(s)

vault-secrets-webhook < 1.23.1

References

https://github.com/bank-vaults/vault-secrets-webhook/secu...
x_refsource_CONFIRM
https://github.com/bank-vaults/vault-secrets-webhook/comm...
x_refsource_MISC
https://github.com/bank-vaults/vault-secrets-webhook/rele...
x_refsource_MISC

CVSS V3.1

Score:
9.6
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.