{"id":"CVE-2025-22873","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-22873","generatedAt":"2026-10-28T04:41:05.269Z","title":"It was possible to improperly access the parent directory of an os.Root by opening a filename ending in \"../\".","description":"It was possible to improperly access the parent directory of an os.Root by opening a filename ending in \"../\". For example, Root.Open(\"../\") would open the parent directory of the Root. This escape only permits opening the parent directory itself, not ancestors of the parent or files contained within the parent.","published":"2026-02-04T23:15:54.000Z","lastModified":"2026-06-17T08:50:42.000Z","status":"Analyzed","sourceIdentifier":"security@golang.org","cvss":{"version":"3.1","score":3.8,"severity":"LOW","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N"},"cwe":["CWE-23"],"affected":["golang/go"],"epss":{"score":0.00236,"percentile":0.1457,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://go.dev/cl/670036","tags":["Patch","Product"],"source":"security@golang.org"},{"url":"https://go.dev/issue/73555","tags":["Issue Tracking","Vendor Advisory"],"source":"security@golang.org"},{"url":"https://groups.google.com/g/golang-announce/c/UZoIkUT367A/m/5WDxKizJAQAJ","tags":["Mailing List","Release Notes"],"source":"security@golang.org"},{"url":"https://pkg.go.dev/vuln/GO-2026-4403","tags":["Issue Tracking","Vendor Advisory"],"source":"security@golang.org"},{"url":"http://www.openwall.com/lists/oss-security/2025/05/06/2","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-22873","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}