CVE-2022-24280: Apache Pulsar

Medium severity, CVSS 6.5. EPSS: 1.5% chance of exploitation in the next 30 days.

Improper Input Validation vulnerability in Proxy component of Apache Pulsar allows an attacker to make TCP/IP connection attempts that originate from the Pulsar Proxy's IP address. When the Apache Pulsar Proxy component is used, it is possible to attempt to open TCP/IP connections to any IP address and port that the Pulsar Proxy can connect to. An attacker could use this as a way for DoS attacks that originate from the Pulsar Proxy's IP address. It hasn’t been detected that the Pulsar Proxy authentication can be bypassed. The attacker will have to have a valid token to a properly secured Pulsar Proxy. This issue affects Apache Pulsar Proxy versions 2.7.0 to 2.7.4; 2.8.0 to 2.8.2; 2.9.0 to 2.9.1; 2.6.4 and earlier.

Affected products

• Apache Pulsar: up to and including 2.6.4; from 2.7.0, before 2.7.5 (fixed in 2.7.5); from 2.8.0, before 2.8.3 (fixed in 2.8.3); from 2.9.0, before 2.9.2 (fixed in 2.9.2)

Published 2022-09-23. Last modified 2026-06-17.