CVE-2026-18504

fastify is a fast and low overhead web framework for Node.js. Versions of fastify before 5.12.1 are affected by a schema validation bypass when a request body schema targets a root primitive value. When the schema validates a top-level primitive such as an integer, Ajv can coerce a JSON string in...

CVE-2026-18504

fastify versions before 5.12.1 suffer a schema validation bypass: when a route schema targets a root primitive (e.g., integer), Ajv coerces the input type but Fastify passes the original uncoerced value to handlers, letting invalid data reach application logic. Upgrade to 5.12.1; no workarounds e...

CVE-2026-18504 fastify vulnerable to schema validation bypass via root primitive coercion mismatch

fastify is a fast and low overhead web framework for Node.js. Versions of fastify before 5.12.1 are affected by a schema validation bypass when a request body schema targets a root primitive value. When the schema validates a top-level primitive such as an integer, Ajv can coerce a JSON string in...

PT-2026-77312

fastify is a fast and low overhead web framework for Node.js. Versions of fastify before 5.12.1 are affected by a schema validation bypass when a request body schema targets a root primitive value. When the schema validates a top-level primitive such as an integer, Ajv can coerce a JSON string in...

CVE-2026-74875

opensslencrypt versions before 1.4.0 silently skip JSON schema validation when the jsonschema library is not installed, allowing malformed metadata to be accepted. Attackers can remove the jsonschema package or supply unknown metadata format versions to bypass all schema checks and process...

CVE-2026-74875

openssl_encrypt (Python package) before 1.4.0 silently skips JSON schema validation when the optional jsonschema library is absent, allowing attackers to remove that package or supply unknown metadata format versions to bypass all schema checks and process malicious data (CVSS 9.8 CRITICAL). No i...

CVE-2026-74875 openssl_encrypt before 1.4.0 Schema Validation Bypass

opensslencrypt versions before 1.4.0 silently skip JSON schema validation when the jsonschema library is not installed, allowing malformed metadata to be accepted. Attackers can remove the jsonschema package or supply unknown metadata format versions to bypass all schema checks and process...

CVE-2026-33806

A flaw was found in Fastify. A remote attacker could exploit this vulnerability by prepending a space to the Content-Type header in a request. This action bypasses the application's schema validation, allowing the attacker to submit data that would otherwise be rejected. This could lead to...

CVE-2026-33806

Impact: Fastify applications using schema.body.content for per-content-type body validation can have validation bypassed entirely by prepending a space to the Content-Type header. The body is still parsed correctly but schema validation is skipped. This is a regression introduced in fastify = 5.3...