CVE-2020-7019

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-08-18 · updated 2026-06-17
Weakness: CWE-270

Description

In Elasticsearch before 7.9.0 and 6.8.12 a field disclosure flaw was found when running a scrolling search with Field Level Security. If a user runs the same query another more privileged user recently ran, the scrolling search can leak fields that should be hidden. This could result in an attacker gaining additional permissions against a restricted index.

Affected products

Elasticsearch: before 6.8.12; from 7.0.0 before 7.9.0 — fixed in 6.8.12, 7.9.0

How to fix

Upgrade to a fixed version: Elasticsearch 6.8.12, 7.9.0. Check the vendor advisory for mitigations.

References

https://discuss.elastic.co/t/elastic-stack-7-9-0-and-6-8-12-security-update/245456
https://security.netapp.com/advisory/ntap-20200827-0001/
https://discuss.elastic.co/t/elastic-stack-7-9-0-and-6-8-12-security-update/245456
https://security.netapp.com/advisory/ntap-20200827-0001/

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