CVE-2026-54725: CWE-918: Server-Side Request Forgery (SSRF) in bank-vaults vault-secrets-webhook
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.
AI Analysis
Technical Summary
The vault-secrets-webhook component of bank-vaults allows direct secret injection into Kubernetes Pods. Prior to version 1.23.1, the parseVaultConfig() function accepts a vault address annotation that can be controlled by an attacker. The webhook's MutateConfigMap and MutateSecret functions call newVaultClient with this address, potentially sending a ServiceAccount JWT to an attacker-controlled Vault endpoint. This SSRF vulnerability (CWE-918) enables attackers with limited privileges to escalate access and compromise secret data. The vulnerability has a CVSS 3.1 score of 9.6, indicating critical severity. The issue is resolved in version 1.23.1.
Potential Impact
Successful exploitation allows an attacker with at least limited privileges to cause the webhook to send Kubernetes ServiceAccount JWT tokens to an attacker-controlled Vault address. This can lead to unauthorized access to secrets, compromising confidentiality and integrity of sensitive data injected into Pods. The vulnerability does not impact availability. No known exploits in the wild have been reported.
Mitigation Recommendations
This vulnerability is fixed in vault-secrets-webhook version 1.23.1. Users should upgrade to version 1.23.1 or later to remediate the issue. No official patch or workaround is provided beyond upgrading. Since this is not a cloud service, remediation must be applied by users. Patch status is confirmed fixed in 1.23.1.
CVE-2026-54725: CWE-918: Server-Side Request Forgery (SSRF) in bank-vaults vault-secrets-webhook
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.
CVSS v3.1
Score 9.6critical
Affected software
bank-vaults
vault-secrets-webhook
pkg:github/bank-vaults/vault-secrets-webhookRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vault-secrets-webhook component of bank-vaults allows direct secret injection into Kubernetes Pods. Prior to version 1.23.1, the parseVaultConfig() function accepts a vault address annotation that can be controlled by an attacker. The webhook's MutateConfigMap and MutateSecret functions call newVaultClient with this address, potentially sending a ServiceAccount JWT to an attacker-controlled Vault endpoint. This SSRF vulnerability (CWE-918) enables attackers with limited privileges to escalate access and compromise secret data. The vulnerability has a CVSS 3.1 score of 9.6, indicating critical severity. The issue is resolved in version 1.23.1.
Potential Impact
Successful exploitation allows an attacker with at least limited privileges to cause the webhook to send Kubernetes ServiceAccount JWT tokens to an attacker-controlled Vault address. This can lead to unauthorized access to secrets, compromising confidentiality and integrity of sensitive data injected into Pods. The vulnerability does not impact availability. No known exploits in the wild have been reported.
Mitigation Recommendations
This vulnerability is fixed in vault-secrets-webhook version 1.23.1. Users should upgrade to version 1.23.1 or later to remediate the issue. No official patch or workaround is provided beyond upgrading. Since this is not a cloud service, remediation must be applied by users. Patch status is confirmed fixed in 1.23.1.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-15T23:07:33.232Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a6cf74bbf32cb7a34294808
Added to database: 07/31/2026, 19:28:11 UTC
Last enriched: 07/31/2026, 19:34:35 UTC
Last updated: 09/12/2026, 10:01:32 UTC
Views: 103
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