High [CVE-2026-78383] Denial of Service via AJP request
This high-severity Red Hat Linux advisory covers CVE-2026-78383; related products: Red Hat Hardened Images, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6.
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Summary
Denial of Service via AJP request. Red Hat rates this important (CVSS 7.5).
Weakness: CWE-770. Red Hat lists fixing advisory RHSA-2026:68257 with package tomcat11-main-11.0.26-0.1.hum1, tomcat10-main-10.1.60-0.1.hum1.
Affected products named by the advisory: Red Hat Hardened Images; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; and 8 more.
Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat JBoss Web Server 5; Red Hat JBoss Web Server 6; and 4 more.
- 11.0.0
- 11.0.25
- 10.1.0
- 10.1.59
- 9.0.0
- 9.0.121
- 8.5.0
- 8.5.100
- 7.0.0
- 7.0.109
Official advisory · high-confidence parse· fetched 6 days ago·verify at source
- tomcat11-main-11.0.26-0.1.hum1
- tomcat10-main-10.1.60-0.1.hum1
- RHSA-2026:68257
Official advisory · high-confidence parse· fetched 6 days ago·verify at source
Mitigation checklist
- This issue can be mitigated by disabling AJP connector or restricting access to it to only trusted AJP clients.
Official advisory · high-confidence parse· fetched 6 days ago·verify at source
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