CVE-2026-89322Vault ACL Policy Evaluation May Allow Bypass of Deny Restrictions
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It affects HashiCorp Vault and 1 other product. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.29%, higher than 21% of scored CVEs.
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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.
- CVSS
- 7.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-178
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.29% (percentile 21)
- Assigned by
- HashiCorp
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 9, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
HashiCorp Vault hashicorp:vault (from the name) | from 0.0.1 before 2.1.2 | CNA record |
HashiCorp Vault Enterprise hashicorp:vault_enterprise (from the name) | from 0.0.1 before 2.1.2; fixed at 1.21.12, fixed at 1.20.17, fixed at 1.19.23 | CNA record |
References
- https://discuss.hashicorp.com/t/hcsec-2026-43-vault-inconsistent-acl-policy-evaluation-may-allow-bypass-of-deny-restrictions/77815
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.