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 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...

@appweaver/core (>=1.0.0, <=1.6.1), @bryopsida/object-store (>=0.1.0, <=0.1.7) +11 more potentially affected by CVE-2026-18165 via @fastify/oauth2 (>=7.9.0, <=8.2.0)

@fastify/oauth2 NPM version =7.9.0, =1.0.0, =0.1.0, =0.0.1, =0.0.1, =0.0.1, =0.0.1, =0.0.1, =0.13.0, =1.4.30, =1.2.0, =0.0.14, =0.0.19 Source cves: CVE-2026-18165 Source advisory: MEND:CVE-2026-18165...

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-2026-18165 @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...

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...

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 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-2026-19474 @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...

@abrahambass/nova (>=0.1.1, <=0.1.3), @adminjs/fastify (>=2.1.0, <=4.2.0) +611 more potentially affected by CVE-2026-19474 via @fastify/multipart (>=6.0.0, <=10.1.0)

@fastify/multipart NPM version =6.0.0, =0.1.1, =2.1.0, =0.0.4, =0.1.0, =0.1.0, =0.1.0, =1.5.1, =0.0.4, =1.39.0, =1.0.0, =0.2.0, =1.0.1, =2.0.26, =0.1.12, =0.1.13 and more Source cves: CVE-2026-19474 Source advisory: MEND:CVE-2026-19474...

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

@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...

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-2026-18549

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-2026-18549 @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...

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...