Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82 and from 8.5.0 through 8.5.95 did not correctly parse HTTP trailer headers. A trailer header that exceeded the header size limit could cause Tomcat to treat a single
request as multiple requests leading to the possibility of request
smuggling when behind a reverse proxy.
Users are recommended to upgrade to version 11.0.0-M11Β onwards, 10.1.16 onwards, 9.0.83 onwards or 8.5.96 onwards, which fix the issue.
[
{
"vendor": "Apache Software Foundation",
"product": "Apache Tomcat",
"versions": [
{
"status": "affected",
"version": "11.0.0-M1",
"versionType": "semver",
"lessThanOrEqual": "11.0.0-M10"
},
{
"status": "affected",
"version": "10.1.0-M1",
"versionType": "semver",
"lessThanOrEqual": "10.1.15"
},
{
"status": "affected",
"version": "9.0.0-M1",
"versionType": "semver",
"lessThanOrEqual": "9.0.82"
},
{
"status": "affected",
"version": "8.5.0",
"versionType": "semver",
"lessThanOrEqual": "8.5.95"
}
],
"defaultStatus": "unaffected"
}
]
[
{
"cpes": [
"cpe:2.3:a:apache:tomcat:-:*:*:*:*:*:*:*"
],
"vendor": "apache",
"product": "tomcat",
"versions": [
{
"status": "affected",
"version": "11.0.0-m1",
"versionType": "custom",
"lessThanOrEqual": "11.0.0-m10"
},
{
"status": "affected",
"version": "10.1.0-M1",
"versionType": "custom",
"lessThanOrEqual": "10.1.15"
},
{
"status": "affected",
"version": "9.0.0-M1",
"versionType": "custom",
"lessThanOrEqual": "9.0.82"
},
{
"status": "affected",
"version": "8.5.0",
"versionType": "custom",
"lessThanOrEqual": "8.5.95"
}
],
"defaultStatus": "unknown"
}
]