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Critical Security Updates for Rocky Linux 9 and 10

Critical Security Updates for Rocky Linux 9 and 10

First seen 29 Sep 2026, 15:41 UTC • •
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ThreatCluster AI
ThreatCluster •September 30, 2026 at 09:36 UTC
  • •CISA confirmed exploitation of a Linux firewall flaw affecting Rocky Linux 9 and 10.
  • •Critical updates for tomcat9 and resteasy have been released on September 28 and 29, 2026.
  • •Administrators are urged to apply the updates to mitigate potential risks.

CISA has confirmed exploitation of a Linux firewall flaw affecting Rocky Linux versions 9 and 10. Two critical updates have been released: one for tomcat9 on Rocky Linux 10 and another for resteasy on Rocky Linux 9. The updates address vulnerabilities with CVSS base scores available from the CVE list. Administrators are urged to apply these updates to mitigate potential risks. The specific packages affected include tomcat9 and resteasy components. The updates were published on September 28 and 29, 2026, respectively. The vulnerabilities are linked to a broader issue with Linux firewall flaws that could be exploited by attackers. Organizations using these versions are advised to check their systems for the necessary patches.

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Timeline

2026-09-28
Critical update for tomcat9 released
An update addressing vulnerabilities in tomcat9 for Rocky Linux 10 was released. CISA confirmed exploitation of a Linux firewall flaw.
Linuxsecurity
2026-09-29
Critical update for resteasy released
An update addressing vulnerabilities in resteasy for Rocky Linux 9 was released. CISA confirmed exploitation of a Linux firewall flaw.
Linuxsecurity

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