CVE-2021-22132

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-01-14 · updated 2026-06-17
Weakness: CWE-522

Description

Elasticsearch versions 7.7.0 to 7.10.1 contain an information disclosure flaw in the async search API. Users who execute an async search will improperly store the HTTP headers. An Elasticsearch user with the ability to read the .tasks index could obtain sensitive request headers of other users in the cluster. This issue is fixed in Elasticsearch 7.10.2

Affected products

Elasticsearch: from 7.7.0 before 7.10.2 — fixed in 7.10.2
Oracle Communications Cloud Native Core Automated Test Suite: 1.8.0

How to fix

Upgrade to a fixed version: Elasticsearch 7.10.2. Check the vendor advisory for mitigations.

References

https://discuss.elastic.co/t/elasticsearch-7-10-2-security-update/261164
https://security.netapp.com/advisory/ntap-20210219-0004/
https://www.oracle.com/security-alerts/cpuapr2022.html
https://discuss.elastic.co/t/elasticsearch-7-10-2-security-update/261164
https://security.netapp.com/advisory/ntap-20210219-0004/
https://www.oracle.com/security-alerts/cpuapr2022.html

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