CVSS 3.1 Score 7.4 of 10 (high)


Published Feb 7, 2024
Updated: Feb 15, 2024
CWE ID 203
CWE ID 200


CVE-2023-51437 is a vulnerability found in the Apache Pulsar SASL Authentication Provider, which affects various components including the Pulsar Broker, Proxy, Websocket Proxy, or Function Worker. This vulnerability allows an attacker to forge a SASL Role Token that can pass signature verification, potentially leading to unauthorized access or information disclosure. To remediate this issue, users are advised to upgrade to version 2.11.3, 3.0.2, or 3.1.1 of Apache Pulsar. Additionally, the secret configured in the `saslJaasServerRoleTokenSignerSecretPath` file should be updated. The risk score for this vulnerability is 26 out of 100 and it is classified as a high severity issue with a CVSS score of 7.4 out of 10.

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