CVE-2026-18165

@fastify/oauth2 is an OAuth 2.0 plugin for Fastify. In versions from 7.2.0 up to but not including 8.3.0, the plugin validates the OAuth state, and with PKCE the code verifier, by comparing the callback query parameter against an unprefixed, predictable cookie, with no server-side binding to the...

CVE-2026-18549

@fastify/multipart is a multipart form-data parser for Fastify. In versions from 5.3.0 up to but not including 10.1.1, when the busboy fileSize limit truncates a file part, the plugin clears its internal current-file reference while the underlying stream is still open. If the client then aborts t...

CVE-2026-19474

@fastify/multipart is a multipart form-data parser for Fastify. In versions from 3.0.0 up to but not including 10.1.1, request.saveRequestFiles can leave completed temporary files on disk when a client disconnects while the parser is advancing between multipart parts. The iterator rejection that...

CVE-2026-18165 @fastify/oauth2 vulnerable to Login CSRF via plantable OAuth state cookies

@fastify/oauth2 is an OAuth 2.0 plugin for Fastify. In versions from 7.2.0 up to but not including 8.3.0, the plugin validates the OAuth state, and with PKCE the code verifier, by comparing the callback query parameter against an unprefixed, predictable cookie, with no server-side binding to the...

CVE-2026-18165

Summary: CVE-2026-18165 affects @fastify/oauth2 in versions 7.2.0 up to, but not including, 8.3.0. The vulnerability arises from validating the OAuth state and PKCE code verifier by comparing the callback query parameter to an unprefixed, predictable cookie, with no server-side binding to the ini...

EUVD-2026-59767

@fastify/oauth2 is an OAuth 2.0 plugin for Fastify. In versions from 7.2.0 up to but not including 8.3.0, the plugin validates the OAuth state, and with PKCE the code verifier, by comparing the callback query parameter against an unprefixed, predictable cookie, with no server-side binding to the...

CVE-2026-18165

@fastify/oauth2 is an OAuth 2.0 plugin for Fastify. In versions from 7.2.0 up to but not including 8.3.0, the plugin validates the OAuth state, and with PKCE the code verifier, by comparing the callback query parameter against an unprefixed, predictable cookie, with no server-side binding to the...

EUVD-2026-59761

@fastify/multipart is a multipart form-data parser for Fastify. In versions from 3.0.0 up to but not including 10.1.1, request.saveRequestFiles can leave completed temporary files on disk when a client disconnects while the parser is advancing between multipart parts. The iterator rejection that...

CVE-2026-19474 @fastify/multipart vulnerable to Denial of Service via temporary file leak on aborted upload

@fastify/multipart is a multipart form-data parser for Fastify. In versions from 3.0.0 up to but not including 10.1.1, request.saveRequestFiles can leave completed temporary files on disk when a client disconnects while the parser is advancing between multipart parts. The iterator rejection that...

CVE-2026-19474

The CVE-2026-19474 entry concerns @fastify/multipart, affecting versions 3.0.0 up to but not including 10.1.1. The root cause is that request.saveRequestFiles() can leave completed temporary files on disk when a client disconnects while the parser is advancing between multipart parts; the iterato...

CVE-2026-19474

@fastify/multipart is a multipart form-data parser for Fastify. In versions from 3.0.0 up to but not including 10.1.1, request.saveRequestFiles can leave completed temporary files on disk when a client disconnects while the parser is advancing between multipart parts. The iterator rejection that...

CVE-2026-18549 @fastify/multipart vulnerable to Denial of Service via aborted upload after fileSize limit

@fastify/multipart is a multipart form-data parser for Fastify. In versions from 5.3.0 up to but not including 10.1.1, when the busboy fileSize limit truncates a file part, the plugin clears its internal current-file reference while the underlying stream is still open. If the client then aborts t...

EUVD-2026-59759

@fastify/multipart is a multipart form-data parser for Fastify. In versions from 5.3.0 up to but not including 10.1.1, when the busboy fileSize limit truncates a file part, the plugin clears its internal current-file reference while the underlying stream is still open. If the client then aborts t...

CVE-2026-18549

@fastify/multipart is a multipart form-data parser for Fastify. In versions from 5.3.0 up to but not including 10.1.1, when the busboy fileSize limit truncates a file part, the plugin clears its internal current-file reference while the underlying stream is still open. If the client then aborts t...

CVE-2026-18549

The CVE-2026-18549 issue affects @fastify/multipart versions 5.3.0 through 10.1.0. When the busboy fileSize limit truncates a file part, the plugin clears its internal current-file reference while the stream remains open. If the client aborts before the terminating boundary is sent, abort cleanup...

CVE-2026-18500 @fastify/jwt vulnerable to authorization bypass via global secret overriding the per-request key

@fastify/jwt is a JSON Web Token plugin for Fastify. In versions before 10.2.2, a per-request verification key passed to request.jwtVerify key is silently overridden by the plugin's globally configured secret, because the option merge applies the global key last. Applications that use different...

CVE-2026-18500 @fastify/jwt vulnerable to authorization bypass via global secret overriding the per-request key

@fastify/jwt is a JSON Web Token plugin for Fastify. In versions before 10.2.2, a per-request verification key passed to request.jwtVerify key is silently overridden by the plugin's globally configured secret, because the option merge applies the global key last. Applications that use different...

CVE-2026-18500

CVE-2026-18500 concerns the @fastify/jwt plugin for Fastify. In versions before 10.2.2, a per-request key passed to request.jwtVerify({ key }) can be silently overridden by the plugin’s globally configured secret due to the option merge applying the global key last. This allows an ordinary authen...

PT-2026-73034

@fastify/multipart is a multipart form-data parser for Fastify. In versions from 3.0.0 up to but not including 10.1.1, request.saveRequestFiles can leave completed temporary files on disk when a client disconnects while the parser is advancing between multipart parts. The iterator rejection that...

PT-2026-73032

@fastify/oauth2 is an OAuth 2.0 plugin for Fastify. In versions from 7.2.0 up to but not including 8.3.0, the plugin validates the OAuth state, and with PKCE the code verifier, by comparing the callback query parameter against an unprefixed, predictable cookie, with no server-side binding to the...