CVE-2023-3775: Vault Enterprise's Sentinel RGP Policies Allowed For Cross-Namespace Denial of Service

Severity: medium (CVSS 4.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-09-29 · updated 2026-06-17
Weakness: CWE-266

Description

A Vault Enterprise Sentinel Role Governing Policy created by an operator to restrict access to resources in one namespace can be applied to requests outside in another non-descendant namespace, potentially resulting in denial of service. Fixed in Vault Enterprise 1.15.0, 1.14.4, 1.13.8.

Affected products

HashiCorp Vault: from 0.11.0 before 1.13.8; from 1.14.0 before 1.14.4 — fixed in 1.13.8, 1.14.4

How to fix

Upgrade to a fixed version: HashiCorp Vault 1.13.8, 1.14.4. Check the vendor advisory for mitigations.

References

https://discuss.hashicorp.com/t/hcsec-2023-29-vault-enterprise-s-sentinel-rgp-policies-allowed-for-cross-namespace-denial-of-service/58653
https://discuss.hashicorp.com/t/hcsec-2023-29-vault-enterprise-s-sentinel-rgp-policies-allowed-for-cross-namespace-denial-of-service/58653

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