| Package | Affected versions | Patched versions |
|---|---|---|
| org.apache.tomcat:tomcat | ≥ 10.0.0-M1, < 10.0.20≥ 10.1.0-M1, < 10.1.0-M14≥ 8.5.0, < 8.5.78≥ 9.0.0-M1, < 9.0.62 | 10.0.2010.1.0-M148.5.789.0.62 |
| tomcat | = 10.1.0≥ 10.0.0, ≤ 10.0.18≥ 8.5.0, ≤ 8.5.77≥ 9.0.0, ≤ 9.0.60 |
The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0-M12, 10.0.0-M1 to 10.0.18, 9.0.0-M1 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.
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