CVE-2021-22160

CVE-2021-22160: vulnerability in Apache Pulsar

Authentication with JWT allows use of “none”-algorithm

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15Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 53%
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).
Affected products
Apache Software Foundation · Apache Pulsar
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