---
id: "CVE-2026-115357"
kind: "vulnerability"
aliases: ["CVE-2026-115357"]
title: "OpenBao: missing response audit entries hide root token generation and rekey"
severity: "low"
cvss: 2.2
epss: 0.0021
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["openbao", "package", "secrets-management", "self-hosted"]
not_affected_if: ["no-audit-devices", "patched-version"]
published_at: "2026-10-22T19:17:41+00:00"
first_seen_at: "2026-10-23T21:57:31+00:00"
updated_at: "2026-10-25T04:49:57+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-115357", "first_seen_at": "2026-10-23T21:57:31+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-115357", "first_seen_at": "2026-10-24T07:15:51+00:00"}]
---

# OpenBao: missing response audit entries hide root token generation and rekey

OpenBao before 2.6.4 and 2.7.x before 2.7.1 fails to write response audit records for the unauthenticated sys/generate-root, sys/rekey, and sys/rekey-recovery-key endpoints when response audit logging fails. An attacker can complete root token generation or rekey operations without a matching response audit record, which weakens forensic detection.

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

## How to check

- Check the OpenBao version with `bao version`; versions below `2.6.4` or in the `2.7.x` line below `2.7.1` are affected.
- Review audit device configuration for response audit logging failures, such as `bao audit list`.

## Fix

- Upgrade OpenBao to `2.6.4` or later on the 2.6 line, or `2.7.1` or later on the 2.7 line.

## Timeline

- 2026-10-23T21:57:31+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-115357
- 2026-10-24T07:15:51+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-115357

## From the sources

OpenBao before 2.6.4 and 2.7.x before 2.7.1 fails to write response audit entries for the unauthenticated sys/generate-root, sys/rekey, and sys/rekey-recovery-key endpoints when request audit logging succeeds but response audit logging fails. An attacker using these endpoints can complete root token generation or rekey operations without a corresponding response audit record, hindering forensic detection.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_