Medium severity5.3NVD Advisory· Published Jul 23, 2026· Updated Jul 28, 2026
CVE-2026-7120
CVE-2026-7120
Description
@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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
@fastify/staticnpm | < 10.1.2 | 10.1.2 |
Affected products
3cpe:2.3:a:fastify:fastify-static:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:fastify:fastify-static:*:*:*:*:*:*:*:*range: <10.1.2
- (no CPE)range: <=10.1.1
- Range: <=10.1.1
Patches
Vulnerability mechanics
References
6- cna.openjsf.org/security-advisories.htmlnvdVendor AdvisoryWEB
- github.com/advisories/GHSA-8pvw-jcv7-9cmjghsaADVISORY
- github.com/fastify/fastify-static/security/advisories/GHSA-8pvw-jcv7-9cmjnvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-7120ghsaADVISORY
- github.com/fastify/fastify-static/commit/878c72e920fabacf7e37739bf78057044717bf63ghsaWEB
- github.com/fastify/fastify-static/releases/tag/v10.1.2ghsaWEB
News mentions
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