Vulnerability Report

CVE-2026-7120

Title: Path Traversal Bypass in @fastify/static allowedPath Callback

Other

Proof Of Concept

No public PoC currently indexed for CVE-2026-7120.

CWE Category CWE-180

Published Date Jul 23, 2026

Modified Date Jul 28, 2026

Exploit Status Not Found

Score 5.3 CVSS v3.1

Exploit Probability (EPSS)

0.23%

Vulnerability Summary

CVE-2026-7120: @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.

Impacted Vendors

fastify 1

Reference Links

https://cna.openjsf.org/security-advisories.html https://github.com/fastify/fastify-static/security/advisories/GHSA-8pvw-jcv7-9cmj

CVSS v3.1

Source Entity ce714d77-add3-4f53-aff5-83d477b104bb

Severity MEDIUM

5.3

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-7120 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

July 28, 2026 MODIFIED

Vulnerability data updated via NVD.

July 23, 2026 MODIFIED

Vulnerability data updated via NVD.

July 23, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


                                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected Stack

No specific products linked.