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Chapter 6. Known issues
This section lists the known issues for AMQ Streams 1.8.
6.1. SMTP appender for log4j
AMQ Streams ships with a potentially vulnerable version of log4j (log4j-1.2.17.redhat-3). The vulnerability lies with the SMTP appender functionality, which is not used by AMQ Streams in its default configuration.
| Issue Number | Description |
|---|---|
| CVE-2020-9488 log4j: improper validation of certificate with host mismatch in SMTP appender [amq-st-1]. |
Workaround
If you are using the SMTP appender, ensure that mail.smtp.ssl.checkserveridentity is set to true.
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