OCTOBER 10, 2026
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Case File

CVE-2026-79677

HIGH · CVSS 7.5 EPSS 0.32%

Source: NVD + CISA KEV + EPSS · Published 2026-09-23 · Last synced 2026-10-10

CyberRota Analysis

AI-Generated

Apache Tomcat versions 11.0.0-M1 through 11.0.25, 10.1.0-M1 through 10.1.59, and 9.0.0.M1 through 9.0.121 are vulnerable to a denial of service due to improper resource management during asynchronous WebSocket writes. This vulnerability can lead to lost timeouts, impacting application availability. Organizations using affected versions, particularly those still on end-of-life releases, should prioritize upgrading to versions 11.0.26, 10.1.60, or 9.0.122 to mitigate this risk.

CVE
CVE-2026-79677
Severity
HIGH
CVSS
7.5
EPSS
0.32%
Apache

Original NVD Description

Missing release of resource after effective lifetime, Comparison using wrong factors vulnerability in Apache Tomcat allows a denial of service as a result of lost time outs for asynchronous WebSocket writes. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 through 9.0.121. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.43 through 7.0.109. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.