High severity · published Oct 7, 2026
CVE-2026-89322
Vault ACL Policy Evaluation May Allow Bypass of Deny Restrictions
7.2
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VA
Vault · HashiCorp
0.0.1 before 2.1.2 · source: vendor
VE
Vault Enterprise · HashiCorp
0.0.1 before 2.1.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89322
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-89322
discuss.hashicorp.com
https://discuss.hashicorp.com/t/hcsec-2026-43-vault-inconsistent-acl-policy-evaluation-may-allow-bypass-of-deny-restrictions/77815
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