What is CVE-2026-15074?

CVE-2026-15074 is a high-severity vulnerability in @Fastify/static, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-07-23.

How severe is CVE-2026-15074?

High severity. CVSS v3 base score is 7.5 out of 10.

Path Traversal in @Fastify/static

CVE-2026-15074

@fastify/static up to and including version 10.1.0 fails to reject dot-dot path segments in request pathnames before the file-resolution stage. This is a bypass of the earlier fix for CVE-2026-6414, which only covered encoded forward slash…

Vulnerability class: Path Traversal (Directory Traversal)

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

@Fastify/static — versions 0, 10.1.1

Weakness classification (CWE)

CWE-22 — Path Traversal

References

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

Frequently asked questions

What is CVE-2026-15074?: CVE-2026-15074 is a high-severity vulnerability in @Fastify/static, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-07-23.
How severe is CVE-2026-15074?: High severity. CVSS v3 base score is 7.5 out of 10.