What’s Vulnerable › Vulnerabilities

CVE-2021-36372: Original block tokens are persisted and can be retrieved

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.5% 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-273

Description

In Apache Ozone versions prior to 1.2.0, Initially generated block tokens are persisted to the metadata database and can be retrieved with authenticated users with permission to the key. Authenticated users may use them even after access is revoked.

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/2021/11/19/1
• https://mail-archives.apache.org/mod_mbox/ozone-dev/202111.mbox/%3C5029c1ac-4685-8492-e3cb-ab48c5c370cf%40apache.org%3E
• http://www.openwall.com/lists/oss-security/2021/11/19/1
• https://mail-archives.apache.org/mod_mbox/ozone-dev/202111.mbox/%3C5029c1ac-4685-8492-e3cb-ab48c5c370cf%40apache.org%3E

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