What’s Vulnerable › Vulnerabilities

CVE-2019-7611

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-03-25 · updated 2026-06-17
• Weakness: CWE-284

Description

A permission issue was found in Elasticsearch versions before 5.6.15 and 6.6.1 when Field Level Security and Document Level Security are disabled and the _aliases, _shrink, or _split endpoints are used . If the elasticsearch.yml file has xpack.security.dls_fls.enabled set to false, certain permission checks are skipped when users perform one of the actions mentioned above, to make existing data available under a new index/alias name. This could result in an attacker gaining additional permissions against a restricted index.

Affected products

• Elasticsearch: before 5.6.15; from 6.0.0 before 6.6.1 — fixed in 5.6.15, 6.6.1

How to fix

Upgrade to a fixed version: Elasticsearch 5.6.15, 6.6.1. Check the vendor advisory for mitigations.

References

• https://discuss.elastic.co/t/elastic-stack-6-6-1-and-5-6-15-security-update/169077
• https://www.elastic.co/community/security
• https://discuss.elastic.co/t/elastic-stack-6-6-1-and-5-6-15-security-update/169077
• https://www.elastic.co/community/security

Get alerted when CVE-2019-7611 or the next vulnerability affects your stack