{"cve":"CVE-2026-27139","nvd":{"published":"2026-03-06T22:16:01.070","modified":"2026-06-17T10:26:44.230","status":"Analyzed","description":"On Unix platforms, when listing the contents of a directory using File.ReadDir or File.Readdir the returned FileInfo could reference a file outside of the Root in which the File was opened. The impact of this escape is limited to reading metadata provided by lstat from arbitrary locations on the filesystem without permitting reading or writing files outside the root.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","score":2.5},"cwes":["CWE-22"],"references":["https://go.dev/cl/749480","https://go.dev/issue/77827","https://groups.google.com/g/golang-announce/c/EdhZqrQ98hk","https://pkg.go.dev/vuln/GO-2026-4602"],"products":["golang:go"],"source":"nvd","synced_at":"2026-10-19T22:25:53.701907451+00:00"},"epss":{"cve":"CVE-2026-27139","score":0.00209,"percentile":0.11081,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GO-2026-4602","url":"https://osv.dev/vulnerability/GO-2026-4602","summary":"FileInfo can escape from a Root in os","modified":"2026-05-15T10:59:23.640277156Z","packages":[{"ecosystem":"Go","name":"stdlib","purl":"pkg:golang/stdlib","ranges":["<1.25.8",">=1.26.0-0 <1.26.1"],"fixed":["1.25.8","1.26.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}