Denial of Service via incomplete cleanup vulnerability in Apache Tomcat. It was possible for WebSocket clients to keep WebSocket connections open leading to increased resource consumption.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98.
Older, EOL versions may also be affected.
Users are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.
{
"versions": [
{
"introduced": "8.5.0"
},
{
"fixed": "8.5.99"
},
{
"introduced": "9.0.0"
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{
"fixed": "9.0.86"
},
{
"introduced": "10.1.0"
},
{
"fixed": "10.1.19"
},
{
"introduced": "0"
},
{
"last_affected": "11.0.0-milestone1"
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{
"introduced": "0"
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{
"last_affected": "11.0.0-milestone10"
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{
"introduced": "0"
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{
"last_affected": "11.0.0-milestone11"
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{
"introduced": "0"
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{
"last_affected": "11.0.0-milestone12"
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{
"introduced": "0"
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{
"last_affected": "11.0.0-milestone13"
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{
"introduced": "0"
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{
"last_affected": "11.0.0-milestone14"
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{
"introduced": "0"
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{
"last_affected": "11.0.0-milestone15"
},
{
"introduced": "0"
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{
"last_affected": "11.0.0-milestone16"
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{
"introduced": "0"
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{
"last_affected": "11.0.0-milestone2"
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{
"introduced": "0"
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{
"last_affected": "11.0.0-milestone3"
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{
"introduced": "0"
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{
"last_affected": "11.0.0-milestone4"
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{
"introduced": "0"
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{
"last_affected": "11.0.0-milestone5"
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{
"introduced": "0"
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{
"last_affected": "11.0.0-milestone6"
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{
"introduced": "0"
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{
"last_affected": "11.0.0-milestone7"
},
{
"introduced": "0"
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{
"last_affected": "11.0.0-milestone8"
},
{
"introduced": "0"
},
{
"last_affected": "11.0.0-milestone9"
},
{
"introduced": "0"
},
{
"last_affected": "10.0"
}
]
}