Vulnerability · Published Jul 31, 2026 · Assigned by GitHub_M

CVE-2026-54725vault-addr annotation SSRF -- webhook makes outbound HTTP call to attacker URL during admission; vault-serviceaccount enables cluster-wide SA token theft via TokenRequest API

Critical 9.6

In plain English

A critical-severity server-side request forgery in vault-secrets-webhook from bank-vaults. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.6Critical

Exploit odds (30 days)0.4%top 60.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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 & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	github.com/bank-vaults/vault-secrets-webhook	1.23.1	GHSA-r2v3-8gwf-7ghm
Go	github.com/bank-vaults/vault-secrets-webhook	1.23.1	GO-2026-6160

Affected products (as reported)

Vendor	Product	Versions
bank-vaults	vault-secrets-webhook	< 1.23.1

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

References

https://github.com/bank-vaults/vault-secrets-webhook/security/advisories/GHSA-r2v3-8gwf-7ghm x_refsource_CONFIRM
https://github.com/bank-vaults/vault-secrets-webhook/commit/76db45976fee0f54cafd94dffa425e6b542f65a0 x_refsource_MISC
https://github.com/bank-vaults/vault-secrets-webhook/releases/tag/v1.23.1 x_refsource_MISC