---
id: "CVE-2026-93333"
page: "https://infrastack.ai/live/CVE-2026-93333"
kind: "vulnerability"
aliases: ["CVE-2026-93333"]
title: "HashiCorp Vault: audit log prefix lets a privileged operator forge log entries"
severity: "low"
cvss: 2.7
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["infrastructure", "kubernetes", "self-hosted", "vault"]
not_affected_if: ["audit-prefix-unused", "managed-hosting"]
published_at: "2026-11-13T00:20:18+00:00"
first_seen_at: "2026-11-13T00:41:07+00:00"
updated_at: "2026-11-13T00:41:30+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93333", "first_seen_at": "2026-11-13T00:41:07+00:00"}]
exploit_sources: []
---

# HashiCorp Vault: audit log prefix lets a privileged operator forge log entries

Link for people: https://infrastack.ai/live/CVE-2026-93333 (this .md is for agents)

Vault's audit devices did not validate a configured audit log prefix or consistently enforce the server setting that restricts prefixing. A privileged operator can inject content into audit logs, producing forged or misleading audit records.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the Vault version with `vault version` and compare it to the fixed releases below.
- Review whether audit log prefixes are configured on audit devices and whether the server-level prefix restriction setting is in use.

## Fix

- Vault Community Edition: `2.2.2`
- Vault Enterprise: `2.2.2`, `1.21.14`, `1.19.25`

## Timeline

- 2026-11-13T00:41:07+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-93333

## Documents

- [mentions] HashiCorp security: HCSEC-2026-57 - Vault audit device prefix vulnerable to log injection https://discuss.hashicorp.com/t/hcsec-2026-57-vault-audit-device-prefix-vulnerable-to-log-injection/78200

## From the sources

Vault's audit devices did not validate the contents of a configured audit log prefix and did not consistently enforce the server-level setting that restricts audit log prefixing. This may allow a privileged operator to inject content into audit logs, potentially leading to forged or misleading audit records. This vulnerability (CVE-2026-93333) is fixed in Vault Community Edition 2.2.2 and Vault Enterprise 2.2.2, 1.21.14, and 1.19.25.

---

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