PT-2026-63567 · @Fastify/Static · Fastify-Static

Mcollina + 2 · CVE-2026-7120 · Published 2026-07-23 · Updated 2026-07-23

NVD

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

@fastify/static evaluates the allowedPath callback before normalizing dot segments and duplicate path separators in the pathname used for file resolution. Versions up to and including 10.1.1 are affected. An unauthenticated attacker can bypass allowedPath restrictions by requesting equivalent non-canonical pathnames, causing files that were intended to be denied to be served anyway. The bypass does not allow access outside the configured static root by itself, it defeats path-based filtering only. The issue is patched in @fastify/static 10.1.2.

Fix

Weakness Enumeration

CWE-180

Related Identifiers

CVE-2026-7120

Affected Products

Fastify-Static

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-7120 · Security Note
• https://github.com/fastify/fastify-static/security/advisories/GHSA-8pvw-jcv7-9cmj · Note
• https://cna.openjsf.org/security-advisories.html · Note