# CVE-2026-89322 — HashiCorp Vault

> As of 2026-10-08, CVE-2026-89322 is a HIGH-severity vulnerability in HashiCorp Vault, CVSS v3.1 7.2, EPSS 0.2% (20.2th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-89322 as of 2026-10-08; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-10-08

## What is CVE-2026-89322?

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.

The record classifies CVE-2026-89322 under weakness class [CWE-178](https://cwe.mitre.org/data/definitions/178.html). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs high-privilege credentials, needs no user interaction, and has high impact on confidentiality, integrity, availability. 2 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 3 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 7.2 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **EPSS (FIRST):** 0.2% probability of exploitation in the next 30 days, higher than 20.2% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 4.4/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-10-07, last modified 2026-10-08

## Is CVE-2026-89322 being exploited?

It currently carries a trending score of 35 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [HashiCorp](https://intel.threadlinqs.com/vendors/hashicorp): Vault, Vault Enterprise

## How to fix CVE-2026-89322

No vendor patch reference has been recorded for CVE-2026-89322 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-89322

No threat campaign in the Threadlinqs corpus currently references CVE-2026-89322, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on 2026-10-08. This product uses the NVD API but is not endorsed or certified by the NVD.

**Other references**

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

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-89322
Full detection coverage and IOCs for threats exploiting CVE-2026-89322 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp