Paper/Archive/CVE-2026-65637

CVE-2026-65637

Apache Software Foundation Apache Tomcat — Apache Tomcat: HTTP/2 no-authority bypass of strict SNI validation - CVE-2026-32990 fix incomplete

EPSS 0.8%CVSS 9.8

critical.is priorityof 100

CVSS 9.8 (ADP)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 55.0.550 × 2011.0 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

Improper Input Validation vulnerability in Apache Tomcat due to incomplete fix for CVE-2026-32990. This issue affects Apache Tomcat: from 11.0.20 through 11.0.24, from 10.1.53 through 10.1.57, from 9.0.115 through 9.0.120. Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.

Affected

ProductAffectedFixed inSource

Apache Tomcat11.0.20 – 11.0.24–CNA

Apache Tomcat10.1.53 – 10.1.57–CNA

Apache Tomcat9.0.115 – 9.0.120–CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

advisorylists.apache.org/thread/djog953z1ohsyt25bdvhfzbmsy22vgcj