1393 matches found
Fastify has a Body Schema Validation Bypass via Leading Space in Content-Type Header
Summary A validation bypass vulnerability exists in Fastify v5.x where request body validation schemas specified via schema.body.content can be completely circumvented by prepending a single space character \x20 to the Content-Type header. The body is still parsed correctly as JSON or any other...
CVE-2026-33805
@fastify/reply-from v12.6.1 and earlier and @fastify/http-proxy v11.4.3 and earlier process the client's Connection header after the proxy has added its own headers via rewriteRequestHeaders. This allows attackers to retroactively strip proxy-added headers from upstream requests by listing them i...
Interpretation Conflict
Overview @fastify/express is an Express compatibility layer for Fastify Affected versions of this package are vulnerable to Interpretation Conflict due to improper handling of middleware paths in the onRegister function. An attacker can gain unauthorized access to protected routes by exploiting t...
@cmmn/tools (>=3.0.0-alpha-1, <=3.0.0-alpha-6), mikr0 (0.1.10) potentially affected by CVE-2026-33807 via @fastify/express (>=4.0.1, <=4.0.2)
@fastify/express NPM version =4.0.1, =3.0.0-alpha-1, =3.0.0-alpha-6 - mikr0 0.1.10 Source cves: CVE-2026-33807 Source advisory: SNYK:JS-FASTIFYEXPRESS-16068280...
@cmmn/tools (>=3.0.0-alpha-1, <=3.0.0-alpha-6), mikr0 (0.1.10) potentially affected by CVE-2026-33808 via @fastify/express (>=4.0.1, <=4.0.2)
@fastify/express NPM version =4.0.1, =3.0.0-alpha-1, =3.0.0-alpha-6 - mikr0 0.1.10 Source cves: CVE-2026-33808 Source advisory: SNYK:JS-FASTIFYEXPRESS-16068303...
Interpretation Conflict
Overview @fastify/express is an Express compatibility layer for Fastify Affected versions of this package are vulnerable to Interpretation Conflict via improper URL normalization gaps. An attacker can gain unauthorized access to protected routes by manipulating the URL path with duplicate slashes...
@cedarjs/api-server (>=1.0.0-canary.12281, <=9.0.0-canary.1784), @cedarjs/cli (>=1.0.0-canary.12281, <=9.0.0-canary.1784) +23 more potentially affected by CVE-2026-33805 via @fastify/http-proxy (>=11.1.2, <=11.4.3)
@fastify/http-proxy NPM version =11.1.2, =1.0.0-canary.12281, =1.0.0-canary.12281, =1.0.0-canary.12281, =1.0.0-canary.12281, =1.0.0-canary.12281, =3.0.0-alpha-1, =0.1.0, =1.0.1, =0.0.1, =1.0.0, =1.0.1, =1.4.4, =1.0.50, =0.0.1, =0.1.65 and more Source cves: CVE-2026-33805 Source advisory:...
HTTP Header Injection
Overview @fastify/reply-from is a forward your HTTP request to another server, for fastify Affected versions of this package are vulnerable to HTTP Header Injection via improper handling of the Connection header after proxy-added headers have been set. An attacker can remove headers intended for...
HTTP Header Injection
Overview @fastify/http-proxy is a proxy http requests, for Fastify Affected versions of this package are vulnerable to HTTP Header Injection via improper handling of the Connection header after proxy-added headers have been set. An attacker can remove headers intended for routing, access control,...
CVE-2026-33808
Impact@fastify/express v4.0.4 and earlier fails to normalize URLs before passing them to Express middleware when Fastify router normalization options are enabled. This allows complete bypass of path-scoped authentication middleware via duplicate slashes when ignoreDuplicateSlashes is enabled, or...
CVE-2026-33805 @fastify/reply-from vulnerable to connection header abuse enabling stripping of proxy-added headers
@fastify/reply-from v12.6.1 and earlier and @fastify/http-proxy v11.4.3 and earlier process the client's Connection header after the proxy has added its own headers via rewriteRequestHeaders. This allows attackers to retroactively strip proxy-added headers from upstream requests by listing them i...
CVE-2026-33805 @fastify/reply-from vulnerable to connection header abuse enabling stripping of proxy-added headers
@fastify/reply-from v12.6.1 and earlier and @fastify/http-proxy v11.4.3 and earlier process the client's Connection header after the proxy has added its own headers via rewriteRequestHeaders. This allows attackers to retroactively strip proxy-added headers from upstream requests by listing them i...
CVE-2026-33805
@fastify/reply-from v12.6.1 and earlier and @fastify/http-proxy v11.4.3 and earlier process the client's Connection header after the proxy has added its own headers via rewriteRequestHeaders. This allows attackers to retroactively strip proxy-added headers from upstream requests by listing them i...
CVE-2026-33805 @fastify/reply-from vulnerable to connection header abuse enabling stripping of proxy-added headers
@fastify/reply-from v12.6.1 and earlier and @fastify/http-proxy v11.4.3 and earlier process the client's Connection header after the proxy has added its own headers via rewriteRequestHeaders. This allows attackers to retroactively strip proxy-added headers from upstream requests by listing them i...
@agentspec/claude-plugin (>=0.1.0, <=0.2.0), @agentspec/sidecar (0.1.0) +98 more potentially affected by CVE-2026-33805 via @fastify/http-proxy (>=7.1.0, <=11.4.3)
@fastify/http-proxy NPM version =7.1.0, =0.1.0, =0.0.2, =1.0.19, =2.1.22, =0.1.1, =0.1.0, =0.0.4, =0.0.4, =0.0.4, =0.0.4, =0.0.4, =1.0.0, =3.0.0-alpha-1, =3.0.0-alpha-6 and more Source cves: CVE-2026-33805 Source advisory: MEND:CVE-2026-33805...
CVE-2026-33805
CVE-2026-33805 affects @fastify/reply-from <= v12.6.1 and @fastify/http-proxy
@agentspec/claude-plugin (>=0.1.0, <=0.2.0), @agentspec/sidecar (0.1.0) +101 more potentially affected by CVE-2026-33805 via @fastify/reply-from (>=7.0.1, <=11.0.2)
@fastify/reply-from NPM version =7.0.1, =0.1.0, =1.1.0, =0.0.2, =1.0.0, =1.0.19, =2.1.22, =0.1.1, =0.1.0, =0.0.4, =0.0.4, =0.0.4, =0.0.4, =0.0.4, =1.1.2 and more Source cves: CVE-2026-33805 Source advisory: MEND:CVE-2026-33805...
CVE-2026-33807
CVE-2026-33807 affects @fastify/express v4.0.4 and earlier. A path handling bug in onRegister doubles middleware paths when inherited by child plugins, causing the middleware to never match requests. This results in complete bypass of Express middleware security controls (authentication, authoriz...
CVE-2026-33807 @fastify/express vulnerable to middleware path doubling causing authentication bypass in child plugin scopes
@fastify/express v4.0.4 and earlier contains a path handling bug in the onRegister function that causes middleware paths to be doubled when inherited by child plugins. When a child plugin is registered with a prefix that matches a middleware path, the middleware path is prefixed a second time,...
@adbl/cartridge (>=0.0.3, <=0.0.5), @agrume/cli (3.0.0) +31 more potentially affected by CVE-2026-33807 via @fastify/express (>=1.1.0, <=4.0.2)
@fastify/express NPM version =1.1.0, =0.0.3, =2.0.0-beta.0, =8.0.0, =3.0.0-alpha-1, =0.29.0, =1.0.0-alpha.1, =1.0.0-beta-cloud-customizer.1, =1.0.0, =0.0.0-canary-20250922152503, =0.0.0-canary-20250922152503, =0.0.0-canary-20251023225836, =2.4.1-beta.1, =1.0.0, =1.6.0 and more Source cves:...