CVE Explorer
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 slashes. Because the underlying send library normalizes dot segments before applying its own path-traversal guard, an unauthenticated attacker can bypass any route-scoped middleware and read files inside the static root that live under the guarded URL prefix. The by
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","packageURL":"pkg:npm/@fastify/static","product":"@fastify/static","vendor":"@fastify/static","versions":[{"lessThan":"10.1.1","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"10.1.1","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:2328877f0ad4d05f739c178f59a42415a65ff61273b1cfbc874fc6f8ac6ccff3 · sha256:f65eaf094f1313ad… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:2328877f0ad4d05f739c178f59a42415a65ff61273b1cfbc874fc6f8ac6ccff3 · sha256:f65eaf094f1313ad… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:2328877f0ad4d05f739c178f59a42415a65ff61273b1cfbc874fc6f8ac6ccff3 · sha256:f65eaf094f1313ad… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"url":"https://cna.openjsf.org/security-advisories.html"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:2328877f0ad4d05f739c178f59a42415a65ff61273b1cfbc874fc6f8ac6ccff3 · sha256:f65eaf094f1313ad… · /containers/cna/references/1
{"url":"https://github.com/fastify/fastify-static/security/advisories/GHSA-83w8-p2f5-377r"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:2328877f0ad4d05f739c178f59a42415a65ff61273b1cfbc874fc6f8ac6ccff3 · sha256:f65eaf094f1313ad… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.