CVE-2026-77791

Uncontrolled Resource Consumption vulnerability in Apache Tomcat during sending of WebSocket close message enabled a DoS attack. This issue affects Apache Tomcat: from 11.0.0-M5 through 11.0.25, from 10.1.8 through 10.1.59, from 9.0.74 through 9.0.121. The following versions were EOL at the time...

CVE-2026-77791 Apache Tomcat: DoS via busy wait during WebSocket close

Uncontrolled Resource Consumption vulnerability in Apache Tomcat during sending of WebSocket close message enabled a DoS attack. This issue affects Apache Tomcat: from 11.0.0-M5 through 11.0.25, from 10.1.8 through 10.1.59, from 9.0.74 through 9.0.121. The following versions were EOL at the time...

EUVD-2026-85229

Uncontrolled Resource Consumption vulnerability in Apache Tomcat during sending of WebSocket close message enabled a DoS attack. This issue affects Apache Tomcat: from 11.0.0-M5 through 11.0.25, from 10.1.8 through 10.1.59, from 9.0.74 through 9.0.121. The following versions were EOL at the time...

CVE-2026-77791 Apache Tomcat: DoS via busy wait during WebSocket close

Uncontrolled Resource Consumption vulnerability in Apache Tomcat during sending of WebSocket close message enabled a DoS attack. This issue affects Apache Tomcat: from 11.0.0-M5 through 11.0.25, from 10.1.8 through 10.1.59, from 9.0.74 through 9.0.121. The following versions were EOL at the time...

CVE-2026-77791

Apache Tomcat is vulnerable to a Denial of Service (DoS) attack due to an uncontrolled resource consumption issue occurring during the sending of a WebSocket close message . The root cause is a busy wait condition that can be triggered by an attacker. This vulnerability affects versions 11.0.0-M5...

EUVD-2026-85225

Authentication Bypass by Alternate Name vulnerability in Apache Tomcat allowed the security constraints for any WebSocket endpoint to be bypassed. 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 version...

CVE-2026-76183 Apache Tomcat: Bypass of security constraints for WebSocket endpoints

Authentication Bypass by Alternate Name vulnerability in Apache Tomcat allowed the security constraints for any WebSocket endpoint to be bypassed. 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 version...

ai.aitia:arrowhead-application-library-java-spring (>=4.4.0.0, <=4.6.0.0), ai.apiverse:apipulse (1.0.1) +12910 more potentially affected by CVE-2026-76183 via org.apache.tomcat.embed:tomcat-embed-websocket (>=9.0.0.m18, <=9.0.121)

org.apache.tomcat.embed:tomcat-embed-websocket MAVEN version =9.0.0.m18, =4.4.0.0, =0.0.12, =0.5.0, =0.5.0, =0.5.0, =0.5.0, =0.5.0, =0.5.0, =1.4.2, =1.6.6, =j8.2.2.0, =j8.2.2.0, =2.1.0 and more Source cves: CVE-2026-76183 Source advisory: MEND:CVE-2026-76183...

ai.astraform:remote-domain-template-java-spring (>=0.2.0, <=0.4.4), ai.chatur:cortex-spring-boot-autoconfigure (>=0.0.1, <=0.1.4) +2995 more potentially affected by CVE-2026-76183 via org.apache.tomcat.embed:tomcat-embed-websocket (>=11.0.0-m15, <=11.0.25)

org.apache.tomcat.embed:tomcat-embed-websocket MAVEN version =11.0.0-m15, =0.2.0, =0.0.1, =0.0.1, =4.5.0, =4.5.0, =4.5.0, =4.5.0, =4.5.0, =2.0.0-beta-2, =2.0.0-beta-1, =0.1.1, =0.1.1, =0.1.1, =0.1.1, =0.1.1, =0.2.0 and more Source cves: CVE-2026-76183 Source advisory:...

ai.ancf.lmos-router:lmos-router-llm-in-spring-cloud-gateway-demo (>=0.2.0, <=0.28.0), ai.ancf.lmos:lmos-operator (>=0.0.4, <=0.6.0) +8684 more potentially affected by CVE-2026-76183 via org.apache.tomcat.embed:tomcat-embed-websocket (>=10.1.0-m16, <=10.1.59)

org.apache.tomcat.embed:tomcat-embed-websocket MAVEN version =10.1.0-m16, =0.2.0, =0.0.4, =0.1.3, =0.5.0, =0.6.0, =0.5.0, =0.7.0, =0.7.0, =0.5.0, =0.7.5, =0.8.3, =0.7.0, =0.5.0, =0.5.0, =0.9.2 and more Source cves: CVE-2026-76183 Source advisory: MEND:CVE-2026-76183...

CVE-2026-76183

Authentication Bypass by Alternate Name vulnerability in Apache Tomcat allowed the security constraints for any WebSocket endpoint to be bypassed. 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 version...

CVE-2026-76183

Authentication Bypass by Alternate Name vulnerability in Apache Tomcat allowed the security constraints for any WebSocket endpoint to be bypassed. 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 version...

org.apache.tomee.bom:tomee-microprofile (>=10.0.0-m1, <=10.0.0), org.apache.tomee.bom:tomee-plume (>=10.0.0-m1, <=10.0.0) +13 more potentially affected by CVE-2026-76183 via org.apache.tomcat:tomcat-websocket (>=10.1.20, <=10.1.57)

org.apache.tomcat:tomcat-websocket MAVEN version =10.1.20, =10.0.0-m1, =10.0.0-m1, =10.0.0-m1, =10.0.0-m1, =10.0.0-m1, =10.0.0-m1, =10.0.0-m1, =10.0.0-m1, =10.0.0-m1, =10.0.0-m1, =10.0.0-m1, =10.0.0-m1, =10.0.0-m1, =10.0.0-m1, =10.0.0-m1, =10.2.0 Source cves: CVE-2026-76183 Source advisory:...

cv.igrp:igrp-core (>=1.7.2.230613, <=1.8.3.240913), cv.igrp:igrp-core-war (>=1.7.2.230622, <=1.7.3.230802) +26 more potentially affected by CVE-2026-76183 via org.apache.tomcat:tomcat-websocket (>=9.0.5, <=9.0.121)

org.apache.tomcat:tomcat-websocket MAVEN version =9.0.5, =1.7.2.230613, =1.7.2.230622, =8.0.1, =8.0.5, =8.0.5, =8.0.5, =8.0.0-m1, =8.0.0-m1, =8.0.0-m1, =8.0.0-m1, =8.0.0-m1, =8.0.0-m1, =8.0.0-m1, =8.0.0-m1, =8.0.16 and more Source cves: CVE-2026-76183 Source advisory: MEND:CVE-2026-76183...

io.github.t1willi:jolt (>=2.6.2, <=25.08.4), org.apache.tomee.bom:tomee-webprofile (11.0.0-m1) +15 more potentially affected by CVE-2026-76183 via org.apache.tomcat:tomcat-websocket (>=11.0.0-m20, <=11.0.25)

org.apache.tomcat:tomcat-websocket MAVEN version =11.0.0-m20, =2.6.2, =11.0.0, =11.1.3 and more Source cves: CVE-2026-76183 Source advisory: MEND:CVE-2026-76183...

CVE-2026-76183 Apache Tomcat: Bypass of security constraints for WebSocket endpoints

Authentication Bypass by Alternate Name vulnerability in Apache Tomcat allowed the security constraints for any WebSocket endpoint to be bypassed. 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 version...

CVE-2026-76183

Apache Tomcat is vulnerable to an authentication bypass by alternate name. The root cause is that request paths were incorrectly parsed as endpoint templates, which allowed attackers to bypass security constraints for any WebSocket endpoint . This issue affects several versions, including 11.0.0-...

CVE-2026-50227

An unauthenticated local attacker can connect to the MQTT broker over its localhost WebSocket endpoint in Acer NitroSense software versions up to and including 5.2.62. This allows the attacker to invoke exposed ddsc RPC functions, including childprocess.execSync, resulting in arbitrary command...

SoupWebsocketExtensionDeflate: libsoup: libsoup: WebSocket permessage-deflate Unbounded Decompression Remote Denial of Service

A flaw was found in libsoup's WebSocket implementation when using the permessage-deflate extension. The extension's decompression loop inflate processes data in chunks without enforcing an upper boundary limit on the output buffer size. While libsoup limits the incoming compressed frame size via...

SoupWebsocketExtensionDeflate: libsoup: libsoup: WebSocket permessage-deflate Unbounded Decompression Remote Denial of Service

A flaw was found in libsoup's WebSocket implementation when using the permessage-deflate extension. The extension's decompression loop inflate processes data in chunks without enforcing an upper boundary limit on the output buffer size. While libsoup limits the incoming compressed frame size via...