---
id: "CVE-2026-115359"
kind: "vulnerability"
aliases: ["CVE-2026-115359"]
title: "OpenBao: role-scoped rate limits skipped for form-encoded requests"
severity: "medium"
cvss: 6.3
epss: 0.00187
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["kubernetes", "openbao", "package", "self-hosted"]
not_affected_if: ["default-config", "no-role-quotas"]
published_at: "2026-10-22T19:17:42+00:00"
first_seen_at: "2026-10-23T21:57:31+00:00"
updated_at: "2026-10-25T04:00:08+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-115359", "first_seen_at": "2026-10-23T21:57:31+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-115359", "first_seen_at": "2026-10-24T07:15:51+00:00"}]
---

# OpenBao: role-scoped rate limits skipped for form-encoded requests

OpenBao's rate limit quota subsystem fails to resolve the role for requests with form-encoded bodies or forwarded certificates, so role-scoped quota rules are not applied. A valid caller can repeatedly request tokens without using up the configured role-based rate limit budget.

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

## How to check

- Check the installed OpenBao version with `bao version`
- Review whether role-based rate limit quotas are configured (quota rules scoped to a role)

## Fix

- Upgrade OpenBao 2.6.x to `2.6.4` or later
- Upgrade OpenBao 2.7.x to `2.7.1` or later

## Timeline

- 2026-10-23T21:57:31+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-115359
- 2026-10-24T07:15:51+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-115359

## From the sources

OpenBao before 2.6.4 and 2.7.x before 2.7.1 contains a flaw in its rate limit quota subsystem where role resolution fails for requests with form-encoded bodies or forwarded certificates, so quota rules scoped to backend-specific roles are not enforced. Valid callers can repeatedly issue tokens without consuming the configured role-based rate limit budget.

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