7.5

CVE-2026-79677

Medienbericht

Apache Tomcat: WebSocket DoS due to lost asynchronous write timeout

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerApache Software Foundation
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Produkt Apache Tomcat
Default Statusunaffected
Version <= 11.0.25
Version 11.0.0-M1
Status affected
Version <= 10.1.59
Version 10.1.0-M1
Status affected
Version <= 9.0.121
Version 9.0.0.M1
Status affected
Version <= 8.5.100
Version 8.5.0
Status affected
Version <= 7.0.109
Version 7.0.43
Status affected
Version 0
Version < 7.0.43
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.32% 0.226
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
CISA-ADP 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-1025 Comparison Using Wrong Factors

The code performs a comparison between two entities, but the comparison examines the wrong factors or characteristics of the entities, which can lead to incorrect results and resultant weaknesses.

CWE-772 Missing Release of Resource after Effective Lifetime

The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.

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VulnDex Intel
Media Report
05.10.2026 17:13
https://lists.apache.org/thread/bzwps6ck4szf2hmksbbon3syyl9qnkv8
http://www.openwall.com/lists/oss-security/2026/09/23/27