CVE-2026-107318

@fastify/reply-from is a Fastify plugin that forwards requests to an upstream HTTP or HTTPS server. In versions prior to 12.7.0, all of the built-in HTTPS transports override the secure default and set rejectUnauthorized to false, so the proxy does not verify the TLS certificate of the upstream...

CVE-2026-107318 @fastify/reply-from vulnerable to improper certificate validation in built-in HTTPS transports

@fastify/reply-from is a Fastify plugin that forwards requests to an upstream HTTP or HTTPS server. In versions prior to 12.7.0, all of the built-in HTTPS transports override the secure default and set rejectUnauthorized to false, so the proxy does not verify the TLS certificate of the upstream...

CVE-2026-107318

@fastify/reply-from is a Fastify plugin that forwards requests to an upstream HTTP or HTTPS server. In versions prior to 12.7.0, all of the built-in HTTPS transports override the secure default and set rejectUnauthorized to false, so the proxy does not verify the TLS certificate of the upstream...

CVE-2026-107318

The @fastify/reply-from Fastify plugin (versions prior to 12.7.0 ) is vulnerable to improper certificate validation in its built-in HTTPS transports. The root cause is that these transports override the secure default by setting rejectUnauthorized to false, causing the proxy to fail to verify the...

EUVD-2026-95261

@fastify/reply-from is a Fastify plugin that forwards requests to an upstream HTTP or HTTPS server. In versions prior to 12.7.0, all of the built-in HTTPS transports override the secure default and set rejectUnauthorized to false, so the proxy does not verify the TLS certificate of the upstream...

CVE-2026-107318 @fastify/reply-from vulnerable to improper certificate validation in built-in HTTPS transports

@fastify/reply-from is a Fastify plugin that forwards requests to an upstream HTTP or HTTPS server. In versions prior to 12.7.0, all of the built-in HTTPS transports override the secure default and set rejectUnauthorized to false, so the proxy does not verify the TLS certificate of the upstream...

PT-2026-108208

Name of the Vulnerable Software and Affected Versions @fastify/reply-from versions prior to 12.7.0 Description Built-in HTTPS transports in this Fastify plugin override the secure default by setting rejectUnauthorized to false. This prevents the proxy from verifying the TLS certificate of the...

CVE-2026-85124 @fastify/http-proxy vulnerable to prefix escape via backslash dot-segments

@fastify/http-proxy versions before 11.6.2 do not validate proxied HTTP request paths for backslash based dot-segments before forwarding them to the configured upstream. The plain HTTP request handler skips the destination validation that the WebSocket path performs, and the underlying reply-from...

CVE-2026-85124

@fastify/http-proxy versions before 11.6.2 are vulnerable to a path traversal (CWE-22) caused by insufficient validation of backslash-based dot-segments in proxied HTTP request paths. The plain HTTP handler skips the destination validation performed on the WebSocket path, and the underlying reply...

@agentspec/claude-plugin (>=0.1.0, <=0.2.0), @agentspec/sidecar (0.1.0) +85 more potentially affected by CVE-2026-16158 via @fastify/reply-from (>=8.3.1, <=11.0.2)

@fastify/reply-from NPM version =8.3.1, =0.1.0, =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, =1.0.0, =1.0.1 and more Source cves: CVE-2026-16158 Source advisory: SNYK:JS-FASTIFYREPLYFROM-18016324...

Unintended Proxy or Intermediary ('Confused Deputy')

Overview @fastify/reply-from is a forward your HTTP request to another server, for fastify Affected versions of this package are vulnerable to Unintended Proxy or Intermediary 'Confused Deputy' in the getUpstream function. An attacker can gain unauthorized access to or modify data across differen...

CVE-2026-16158

Impact: @fastify/reply-from versions from 8.3.1 up to but not including 12.6.4 build the internal URL cache key by concatenating the destination and source path without a delimiter. Different destination and source pairs can therefore produce the same key while resolving to different upstream URL...

CVE-2026-16158

Impact: @fastify/reply-from versions from 8.3.1 up to but not including 12.6.4 build the internal URL cache key by concatenating the destination and source path without a delimiter. Different destination and source pairs can therefore produce the same key while resolving to different upstream URL...

EUVD-2026-45373

Impact: @fastify/reply-from versions from 8.3.1 up to but not including 12.6.4 build the internal URL cache key by concatenating the destination and source path without a delimiter. Different destination and source pairs can therefore produce the same key while resolving to different upstream URL...

CVE-2026-16158 @fastify/reply-from vulnerable to cross-upstream request routing via URL cache key collision

Impact: @fastify/reply-from versions from 8.3.1 up to but not including 12.6.4 build the internal URL cache key by concatenating the destination and source path without a delimiter. Different destination and source pairs can therefore produce the same key while resolving to different upstream URL...

CVE-2026-16158

CVE-2026-16158 affects @fastify/reply-from. The vulnerability stems from how the internal URL cache key is built by concatenating the destination and source paths without a delimiter in versions 8.3.1 up to (but not including) 12.6.4. This can cause key collisions where different upstreams resolv...

CVE-2026-16158 @fastify/reply-from vulnerable to cross-upstream request routing via URL cache key collision

Impact: @fastify/reply-from versions from 8.3.1 up to but not including 12.6.4 build the internal URL cache key by concatenating the destination and source path without a delimiter. Different destination and source pairs can therefore produce the same key while resolving to different upstream URL...

PT-2026-60935

Name of the Vulnerable Software and Affected Versions @fastify/reply-from versions 8.3.1 through 12.6.3 Description Internal URL cache keys are constructed by concatenating the destination and source paths without a delimiter. This allows different destination and source pairs to generate identic...

CVE-2026-16158: Unintended Proxy or Intermediary

Impact: @fastify/reply-from versions from 8.3.1 up to but not including 12.6.4 build the internal URL cache key by concatenating the destination and source path without a delimiter. Different destination and source pairs can therefore produce the same key while resolving to different upstream URL...

CVE-2026-33805

A flaw was found in @fastify/reply-from and @fastify/http-proxy. A remote attacker can exploit this vulnerability by manipulating the Connection header in client requests. This allows the attacker to remove specific headers that the proxy has added for security, routing, or access control purpose...