{"cve":"CVE-2020-25039","nvd":{"published":"2020-09-16T18:15:13.467","modified":"2026-06-17T03:06:16.660","status":"Modified","description":"Sylabs Singularity 3.2.0 through 3.6.2 has Insecure Permissions on temporary directories used in fakeroot or user namespace container execution.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","score":8.1},"cwes":["CWE-668"],"references":["http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00070.html","http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00088.html","https://github.com/hpcng/singularity/security/advisories/GHSA-w6v2-qchm-grj7","https://medium.com/sylabs","http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00070.html"],"products":["opensuse:leap","sylabs:singularity"],"source":"nvd","synced_at":"2026-10-19T21:09:20.498348299+00:00"},"epss":{"cve":"CVE-2020-25039","score":0.02014,"percentile":0.80898,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-w6v2-qchm-grj7","url":"https://osv.dev/vulnerability/GHSA-w6v2-qchm-grj7","summary":"Insecure permissions on user namespace / fakeroot temporary rootfs in Singularity","modified":"2026-09-10T03:49:10.540856552Z","packages":[{"ecosystem":"Go","name":"github.com/sylabs/singularity","purl":"pkg:golang/github.com/sylabs/singularity","ranges":[">=3.2.0 <3.6.3"],"fixed":["3.6.3"]}]}],"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."]}