---
id: "CVE-2026-102260"
kind: "vulnerability"
aliases: ["CVE-2026-102260"]
title: "HashiCorp Nomad: read-only API lets users see other namespaces"
severity: "medium"
cvss: 4.3
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["infrastructure", "kubernetes", "nomad", "self-hosted"]
not_affected_if: ["acls-disabled", "single-namespace"]
published_at: "2026-10-29T18:17:21+00:00"
first_seen_at: "2026-10-29T18:26:33+00:00"
updated_at: "2026-10-29T18:28:45+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-102260", "first_seen_at": "2026-10-29T18:26:33+00:00"}]
---

# HashiCorp Nomad: read-only API lets users see other namespaces

Nomad and Nomad Enterprise have several read-only API endpoints that skip namespace checks. An authenticated user with read access in one namespace can view objects in other namespaces.

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

## How to check

- Confirm the Nomad version with `nomad version`
- Check whether ACLs are enabled and which namespaces users hold read permissions in

## Fix

- Nomad Community Edition: `2.1.0`
- Nomad Enterprise: `2.1.0`, `1.11.12`, or `1.10.18`

## Timeline

- 2026-10-29T18:26:33+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-102260

## From the sources

HashiCorp Nomad and Nomad Enterprise are vulnerable to cross-namespace authorization bypasses in several read-only API endpoints that may allow an authenticated user with read permissions in one namespace to view information about objects in other namespaces. This vulnerability (CVE-2026-102260) is fixed in Nomad Community Edition 2.1.0 and Nomad Enterprise 2.1.0, 1.11.12, and 1.10.18.

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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_