# CVE-2026-115710: Use of Cache Containing Sensitive Information in Elasticsearch Leading to Information Disclosure

> CVE-2026-115710: Use of Cache Containing Sensitive Information in Elasticsearch Leading to Information Disclosure. CVSS 4.2 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-115710
Last updated: 2026-11-03T20:32:50Z

- Published: 2026-11-03 16:44 UTC · Updated: 2026-11-03 20:32 UTC · Assigner: elastic
- CVSS: 4.2 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
- EPSS: 0.17%, 6th percentile (scored 2026-11-10)
- CISA KEV: no
- CWE: CWE-524

## Description

Use of Cache Containing Sensitive Information (CWE-524) in Elasticsearch can lead to information disclosure and incorrect search results via specially crafted search requests. For some query types, Elasticsearch can share cached query results between users who have field-level security restrictions and users who do not. A user restricted by field-level security can learn which documents match a value in a field that they cannot read. A restricted user can also cause users with full access to receive incomplete search results. Disclosure is only possible when a user with full access ran the same query on the same shard recently.

## Affected vendors and products

- Elastic: Elasticsearch

## Tracked companies

- [Elastic Cloud](https://rewindex.com/company/elastic-cloud.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-115710)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-115710)
- [https://discuss.elastic.co/t/elasticsearch-8-19-24-9-4-9-9-5-6-security-update-esa-2026-210/391363](https://discuss.elastic.co/t/elasticsearch-8-19-24-9-4-9-9-5-6-security-update-esa-2026-210/391363)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-115710 · Markdown: https://rewindex.com/cve/CVE-2026-115710.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-115710 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-11T04:21:55.453Z