A malicious user may submit a specially-crafted complex payload that otherwise meets the default request size limit which results in excessive memory and CPU consumption of Vault. This may lead to a timeout in Vault’s auditing subroutine, potentially resulting in the Vault server to become unresponsive. This vulnerability, CVE-2025-6203, is fixed in Vault Community Edition 1.20.3 and Vault Enterprise 1.20.3, 1.19.9, 1.18.14, and 1.16.25.
[
{
"events": [
{
"introduced": "1.15.0"
},
{
"fixed": "1.16.27"
}
]
},
{
"events": [
{
"introduced": "1.18.0"
},
{
"fixed": "1.18.15"
}
]
},
{
"events": [
{
"introduced": "1.19.0"
},
{
"fixed": "1.19.11"
}
]
},
{
"events": [
{
"introduced": "1.20.0"
},
{
"fixed": "1.20.5"
}
]
}
]
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-6203.json"