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CVE-2026-78437

Apache Tomcat: HTTP/2 DoS via malformed request PUBLISHED

Description (CNA)

Incomplete cleanup vulnerability in Apache Tomcat allows a malformed request to potentially (depends on timing) cause one request from another user to fail. This issue affects Apache Tomcat: from 11.0.19 through 11.0.25, from 10.1.53 through 10.1.59, from 9.0.116 through 9.0.121. Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.

Affected (CNA)

Vendor / productVersions
Apache Software Foundation / Apache Tomcataffected 11.0.19 through 11.0.25; affected 10.1.53 through 10.1.59; affected 9.0.116 through 9.0.121; unaffected 0 through 8.5.100

CWE

CWE-459

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.