CVE-2026-7120

mediumCVSS 5.3covered by 2 sourcesfirst seen 2026-07-23

Impact @fastify/static evaluates the allowedPath callback before normalizing dot segments and duplicate slashes in the pathname used for file resolution. Non-canonical pathnames such as //file, /./file, or /public/../private/file bypass allowedPath filtering while resolving to the intended file on disk. Applications that use allowedPath as a security boundary to restrict access to specific static files or path subtrees may unintentionally expose files that were intended to be denied. Patches Upgrade to @fastify/static >= 10.1.2. Workarounds None. Upgrade to the patched version.

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Exploitation outlook

Low exploitation risk0.22% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 13% of all EPSS-scored CVEs.

Advisory coverage (2)

mediumGHSA-8pvw-jcv7-9cmj: @fastify/static vulnerable to Authorization Bypass via Non-Canonical URL Pathsghsa · 2026-07-24
mediumCVE-2026-7120: @fastify/static evaluates the allowedPath callback before normalizing dot segments and duplicat…nvd · 2026-07-23

External references

NVD record for CVE-2026-7120

CVE.org record

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