VYPR
Critical severity9.8NVD Advisory· Published May 26, 2021· Updated Jun 17, 2026

CVE-2021-22160

CVE-2021-22160

Description

If Apache Pulsar is configured to authenticate clients using tokens based on JSON Web Tokens (JWT), the signature of the token is not validated if the algorithm of the presented token is set to "none". This allows an attacker to connect to Pulsar instances as any user (incl. admins).

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
org.apache.pulsar:pulsarMaven
< 2.7.22.7.2

Affected products

2

Patches

Vulnerability mechanics

References

20

News mentions

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