CVE-2021-41532: Unauthenticated access to Ozone Recon HTTP endpoints

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-11-19 · updated 2026-06-17
Weakness: CWE-200

Description

In Apache Ozone before 1.2.0, Recon HTTP endpoints provide access to OM, SCM and Datanode metadata. Due to a bug, any unauthenticated user can access the data from these endpoints.

Affected products

Apache Software Foundation Apache Ozone: before 1.2.0 — fixed in 1.2.0

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache Ozone 1.2.0. Check the vendor advisory for mitigations.

References

http://www.openwall.com/lists/oss-security/2021/11/19/8
https://mail-archives.apache.org/mod_mbox/ozone-dev/202111.mbox/%3Ce0bc6598-9669-b897-fc28-de8a896e36aa%40apache.org%3E
http://www.openwall.com/lists/oss-security/2021/11/19/8
https://mail-archives.apache.org/mod_mbox/ozone-dev/202111.mbox/%3Ce0bc6598-9669-b897-fc28-de8a896e36aa%40apache.org%3E

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