CVE-2026-6410

@fastify/static versions 8.0.0 through 9.1.0 allow path traversal when directory listing is enabled via the list option. The dirList.path function resolves directories outside the configured static root using path.join without a containment check. A remote unauthenticated attacker can obtain...

CVE-2026-6270

@fastify/middie versions 9.3.1 and earlier do not register inherited middleware directly on child plugin engine instances. When a Fastify application registers authentication middleware in a parent scope and then registers child plugins with @fastify/middie, the child scope does not inherit the...

CVE-2026-33804 @fastify/middie vulnerable to middleware bypass via deprecated ignoreDuplicateSlashes option

@fastify/middie versions 9.3.1 and earlier are vulnerable to middleware bypass when the deprecated Fastify ignoreDuplicateSlashes option is enabled. The middleware path matching logic does not account for duplicate slash normalization performed by Fastify's router, allowing requests with duplicat...

CVE-2026-33804 @fastify/middie vulnerable to middleware bypass via deprecated ignoreDuplicateSlashes option

@fastify/middie versions 9.3.1 and earlier are vulnerable to middleware bypass when the deprecated Fastify ignoreDuplicateSlashes option is enabled. The middleware path matching logic does not account for duplicate slash normalization performed by Fastify's router, allowing requests with duplicat...

CVE-2026-33804

CVE-2026-33804 affects @fastify/middie v9.3.1 and earlier, where middleware bypass can occur when the deprecated top-level ignoreDuplicateSlashes option is enabled. The middleware’s path-matching does not account for duplicate-slash normalization performed by Fastify’s router, allowing requests w...

CVE-2026-33804 @fastify/middie vulnerable to middleware bypass via deprecated ignoreDuplicateSlashes option

@fastify/middie versions 9.3.1 and earlier are vulnerable to middleware bypass when the deprecated Fastify ignoreDuplicateSlashes option is enabled. The middleware path matching logic does not account for duplicate slash normalization performed by Fastify's router, allowing requests with duplicat...

CVE-2026-6270 @fastify/middie vulnerable to middleware authentication bypass in child plugin scopes

@fastify/middie versions 9.3.1 and earlier do not register inherited middleware directly on child plugin engine instances. When a Fastify application registers authentication middleware in a parent scope and then registers child plugins with @fastify/middie, the child scope does not inherit the...

CVE-2026-6270 @fastify/middie vulnerable to middleware authentication bypass in child plugin scopes

@fastify/middie versions 9.3.1 and earlier do not register inherited middleware directly on child plugin engine instances. When a Fastify application registers authentication middleware in a parent scope and then registers child plugins with @fastify/middie, the child scope does not inherit the...

CVE-2026-6270

Summary : The vulnerability affects the Node.js module @fastify/middie, specifically versions 9.3.1 and earlier. The root cause is that inherited middleware is not registered on child plugin engine instances, so when a Fastify app registers authentication middleware in a parent scope and then loa...

CVE-2026-6270 @fastify/middie vulnerable to middleware authentication bypass in child plugin scopes

@fastify/middie versions 9.3.1 and earlier do not register inherited middleware directly on child plugin engine instances. When a Fastify application registers authentication middleware in a parent scope and then registers child plugins with @fastify/middie, the child scope does not inherit the...

CVE-2026-6270

@fastify/middie versions 9.3.1 and earlier do not register inherited middleware directly on child plugin engine instances. When a Fastify application registers authentication middleware in a parent scope and then registers child plugins with @fastify/middie, the child scope does not inherit the...

@13w/local-rag (>=1.6.0, <=1.7.2), @24letters/devservers (>=0.1.0, <=0.6.0) +735 more potentially affected by CVE-2026-6410 via @fastify/static (>=8.0.0, <=9.1.0)

@fastify/static NPM version =8.0.0, =1.6.0, =0.1.0, =0.1.0, =0.4.0, =0.1.0-rc.1, =0.1.0, =1.1.0, =1.1.0, =1.0.0, =1.0.0, =1.0.0, =0.1.0, =0.1.0, =1.0.0-beta.23, =1.0.3 and more Source cves: CVE-2026-6410 Source advisory: SNYK:JS-FASTIFYSTATIC-16098211...

CVE-2026-6410 @fastify/static vulnerable to path traversal in directory listing

@fastify/static versions 8.0.0 through 9.1.0 allow path traversal when directory listing is enabled via the list option. The dirList.path function resolves directories outside the configured static root using path.join without a containment check. A remote unauthenticated attacker can obtain...

CVE-2026-6410

@fastify/static versions 8.0.0 through 9.1.0 allow path traversal when directory listing is enabled via the list option. The dirList.path function resolves directories outside the configured static root using path.join without a containment check. A remote unauthenticated attacker can obtain...

CVE-2026-6410 @fastify/static vulnerable to path traversal in directory listing

@fastify/static versions 8.0.0 through 9.1.0 allow path traversal when directory listing is enabled via the list option. The dirList.path function resolves directories outside the configured static root using path.join without a containment check. A remote unauthenticated attacker can obtain...

CVE-2026-6410

Affected product/component: @fastify/static, versions 8.0.0–9.1.0. Root cause: dirList.path() uses path.join() to resolve directories outside the configured static root without containment checks, enabling path traversal when directory listing is enabled via the list option. Impact: remote unauth...

CVE-2026-6410 @fastify/static vulnerable to path traversal in directory listing

@fastify/static versions 8.0.0 through 9.1.0 allow path traversal when directory listing is enabled via the list option. The dirList.path function resolves directories outside the configured static root using path.join without a containment check. A remote unauthenticated attacker can obtain...

CVE-2026-6414

@fastify/static versions 8.0.0 through 9.1.0 decode percent-encoded path separators %2F before filesystem resolution, while Fastify's router treats them as literal characters. This mismatch allows attackers to bypass route-based middleware or guards that protect files served by @fastify/static. F...

@13w/local-rag (>=1.6.0, <=1.7.2), @24letters/devservers (>=0.1.0, <=0.6.0) +735 more potentially affected by CVE-2026-6414 via @fastify/static (>=8.0.0, <=9.1.0)

@fastify/static NPM version =8.0.0, =1.6.0, =0.1.0, =0.1.0, =0.4.0, =0.1.0-rc.1, =0.1.0, =1.1.0, =1.1.0, =1.0.0, =1.0.0, =1.0.0, =0.1.0, =0.1.0, =1.0.0-beta.23, =1.0.3 and more Source cves: CVE-2026-6414 Source advisory: SNYK:JS-FASTIFYSTATIC-16098210...

Improper Handling of URL Encoding (Hex Encoding)

Overview @fastify/static is a Plugin for serving static files as fast as possible. Affected versions of this package are vulnerable to Improper Handling of URL Encoding Hex Encoding via the handling of percent-encoded path separators in the fastifyStatic function. This creates a mismatch between...