{
"id": "GHSA-m7jv-hq7h-mq7c",
"aliases": [
"CVE-2020-13935"
],
"details": "The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.",
"summary": "Infinite Loop in Apache Tomcat",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "10.0.0-M1"
},
{
"fixed": "10.0.0-M7"
}
]
}
],
"package": {
"name": "org.apache.tomcat:tomcat",
"ecosystem": "Maven"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "9.0.0.M1"
},
{
"fixed": "9.0.37"
}
]
}
],
"package": {
"name": "org.apache.tomcat:tomcat",
"ecosystem": "Maven"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "8.5.0"
},
{
"fixed": "8.5.57"
}
]
}
],
"package": {
"name": "org.apache.tomcat:tomcat",
"ecosystem": "Maven"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "7.0.27"
},
{
"fixed": "7.0.105"
}
]
}
],
"package": {
"name": "org.apache.tomcat:tomcat",
"ecosystem": "Maven"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "7.0.27"
},
{
"fixed": "7.0.105"
}
]
}
],
"package": {
"name": "org.apache.tomcat.embed:tomcat-embed-websocket",
"ecosystem": "Maven"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "8.5.0"
},
{
"fixed": "8.5.57"
}
]
}
],
"package": {
"name": "org.apache.tomcat.embed:tomcat-embed-websocket",
"ecosystem": "Maven"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "9.0.0.M1"
},
{
"fixed": "9.0.37"
}
]
}
],
"package": {
"name": "org.apache.tomcat.embed:tomcat-embed-websocket",
"ecosystem": "Maven"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "10.0.0-M1"
},
{
"fixed": "10.0.0-M7"
}
]
}
],
"package": {
"name": "org.apache.tomcat.embed:tomcat-embed-websocket",
"ecosystem": "Maven"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "10.0.0-M1"
},
{
"fixed": "10.0.0-M7"
}
]
}
],
"package": {
"name": "org.apache.tomcat:tomcat-websocket",
"ecosystem": "Maven"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "9.0.0.M1"
},
{
"fixed": "9.0.37"
}
]
}
],
"package": {
"name": "org.apache.tomcat:tomcat-websocket",
"ecosystem": "Maven"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "8.5.0"
},
{
"fixed": "8.5.57"
}
]
}
],
"package": {
"name": "org.apache.tomcat:tomcat-websocket",
"ecosystem": "Maven"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "7.0.27"
},
{
"fixed": "7.0.105"
}
]
}
],
"package": {
"name": "org.apache.tomcat:tomcat-websocket",
"ecosystem": "Maven"
}
}
],
"modified": "2026-08-25T18:31:30Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"published": "2022-02-08T22:05:17Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-13935",
"type": "ADVISORY"
},
{
"url": "https://github.com/apache/tomcat/commit/12d715676038efbf9c728af10163f8277fc019d5",
"type": "WEB"
},
{
"url": "https://github.com/apache/tomcat/commit/1c1c77b0efb667cea80b532440b44cea1dc427c3",
"type": "WEB"
},
{
"url": "https://github.com/apache/tomcat/commit/40fa74c74822711ab878079d0a69f7357926723d",
"type": "WEB"
},
{
"url": "https://github.com/apache/tomcat/commit/4c04982870d6e730c38e21e58fb653b7cf723784",
"type": "WEB"
},
{
"url": "https://github.com/apache/tomcat/commit/f9f75c14678b68633f79030ddf4ff827f014cc84",
"type": "WEB"
},
{
"url": "https://tomcat.apache.org/security-9.html",
"type": "WEB"
},
{
"url": "https://usn.ubuntu.com/4448-1",
"type": "WEB"
},
{
"url": "https://usn.ubuntu.com/4596-1",
"type": "WEB"
},
{
"url": "https://www.debian.org/security/2020/dsa-4727",
"type": "WEB"
},
{
"url": "https://www.oracle.com//security-alerts/cpujul2021.html",
"type": "WEB"
},
{
"url": "https://www.oracle.com/security-alerts/cpuApr2021.html",
"type": "WEB"
},
{
"url": "https://www.oracle.com/security-alerts/cpuapr2022.html",
"type": "WEB"
},
{
"url": "https://www.oracle.com/security-alerts/cpujan2021.html",
"type": "WEB"
},
{
"url": "https://www.oracle.com/security-alerts/cpujan2022.html",
"type": "WEB"
},
{
"url": "https://www.oracle.com/security-alerts/cpuoct2020.html",
"type": "WEB"
},
{
"url": "https://www.oracle.com/security-alerts/cpuoct2021.html",
"type": "WEB"
},
{
"url": "https://tomcat.apache.org/security-8.html",
"type": "WEB"
},
{
"url": "https://tomcat.apache.org/security-7.html",
"type": "WEB"
},
{
"url": "https://tomcat.apache.org/security-10.html",
"type": "WEB"
},
{
"url": "https://security.netapp.com/advisory/ntap-20200724-0003",
"type": "WEB"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00017.html",
"type": "WEB"
},
{
"url": "https://lists.apache.org/thread.html/rd48c72bd3255bda87564d4da3791517c074d94f8a701f93b85752651%40%3Cannounce.tomcat.apache.org%3E",
"type": "WEB"
},
{
"url": "https://lists.apache.org/thread.html/r4e5d3c09f4dd2923191e972408b40fb8b42dbff0bc7904d44b651e50@%3Cusers.tomcat.apache.org%3E",
"type": "WEB"
},
{
"url": "https://lists.apache.org/thread.html/r4e5d3c09f4dd2923191e972408b40fb8b42dbff0bc7904d44b651e50%40%3Cusers.tomcat.apache.org%3E",
"type": "WEB"
},
{
"url": "https://kc.mcafee.com/corporate/index?page=content&id=SB10332",
"type": "WEB"
},
{
"url": "https://github.com/apache/tomcat",
"type": "PACKAGE"
},
{
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00084.html",
"type": "WEB"
},
{
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00088.html",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-835"
],
"severity": "HIGH",
"github_reviewed": true,
"nvd_published_at": "2020-07-14T15:15:00Z",
"github_reviewed_at": "2021-04-12T18:44:47Z"
}
}