{"cve":"CVE-2020-27534","nvd":{"published":"2020-12-30T23:15:15.297","modified":"2026-06-17T03:09:16.980","status":"Modified","description":"util/binfmt_misc/check.go in Builder in Docker Engine before 19.03.9 calls os.OpenFile with a potentially unsafe qemu-check temporary pathname, constructed with an empty first argument in an ioutil.TempDir call.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3},"cwes":["CWE-22"],"references":["http://web.archive.org/web/20200530054359/https://docs.docker.com/engine/release-notes/","https://github.com/moby/buildkit/pull/1462","https://github.com/moby/moby/pull/40877","https://golang.org/pkg/io/ioutil/#TempDir","https://golang.org/pkg/os/#TempDir"],"products":["docker:docker"],"source":"nvd","synced_at":"2026-10-19T21:12:09.559580076+00:00"},"epss":{"cve":"CVE-2020-27534","score":0.01766,"percentile":0.78086,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-6hwg-w5jg-9c6x","url":"https://osv.dev/vulnerability/GHSA-6hwg-w5jg-9c6x","summary":"Path Traversal in Moby builder","modified":"2026-09-10T03:50:09.240988294Z","packages":[{"ecosystem":"Go","name":"github.com/moby/moby","purl":"pkg:golang/github.com/moby/moby","ranges":["<19.03.9"],"fixed":["19.03.9"]},{"ecosystem":"Go","name":"github.com/docker/docker","purl":"pkg:golang/github.com/docker/docker","ranges":["<19.03.9"],"fixed":["19.03.9"]}]}],"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."]}