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7.8
Tomcat 9 can be exploited to run malicious code
published 1 month ago
Summary
The Tomcat 9 package version 9.0.115 has a security weakness that could let an attacker run code on your server. This could compromise your web applications and the data they handle. Update to the newest Tomcat 9 release, which contains the correction.
What to do
- Update cleanstart tomcat9 to version 9.0.115-r0.
- Update tomcat9 to version 9.0.115-r0.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| CleanStart | cleanstart | tomcat9 |
< 9.0.115-r0 Fix: upgrade to 9.0.115-r0
|
| CleanStart | – | tomcat9 |
< 9.0.115-r0 Fix: upgrade to 9.0.115-r0
|
Original advisory text
Security fix for GHSA-8mc5-53m5-3qj2 applied in: tomcat9 9.0.115-r0
Security vulnerability affects the tomcat9 package. This issue is resolved in later releases. See references for vulnerability details.
Severity
7.8
High
Timeline
Published18 Sep 2026
Updated15 Oct 2026
First seen18 Sep 2026
Sources
CLEANSTART-2026-UA26189 · OSV
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