Fastify is a fast and low overhead web framework, for Node.js. In versions 5.0.0 to 5.3.0 as well as version 4.29.0, applications that specify different validation strategies for different content types have a possibility to bypass validation by providing a slightly altered content type such as with different casing or altered whitespacing before ;. This was patched in v5.3.1, but the initial patch did not cover all problems. This has been fully patched in v5.3.2 and v4.29.1. A workaround involves not specifying individual content types in the schema.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-1287"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/32xxx/CVE-2025-32442.json"
}{
"extracted_events": [
{
"cpe": "cpe:2.3:a:fastify:fastify:*:*:*:*:*:node.js:*:*",
"range": [
{
"introduced": "5.0.0"
},
{
"fixed": "5.3.2"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:fastify:fastify:4.29.0:*:*:*:*:node.js:*:*",
"range": [
{
"introduced": "4.29.0"
},
{
"last_affected": "4.29.0"
}
],
"source": "CPE_STRING"
},
{
"range": [
{
"fixed": "436da4c06dfbbb8c24adee3a64de0c51e4f47418"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
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}
],
"source": "REFERENCES_COMMIT"
}
]
}