{"cve":"CVE-2026-44973","nvd":{"published":"2026-05-28T22:16:59.937","modified":"2026-07-21T10:10:00.103","status":"Deferred","description":"Billy is an interface filesystem abstraction for Go. Prior to 5.9.0, multiple path traversal issues exist across different components of go-billy. Insufficient path sanitization and boundary enforcement may allow crafted paths (e.g., using ..) to escape intended base directories. While go-billy was not originally designed to provide a strong security boundary, some of these issues were inconsistent across some of the built-in implementations. This results in scenarios where applications relying on go-billy for some level of isolation may inadvertently expose access to unintended filesystem locations. This vulnerability is fixed in 5.9.0.","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-22"],"references":["https://github.com/go-git/go-billy/security/advisories/GHSA-qw64-3x98-g7q2"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:36:28.938604137+00:00"},"epss":{"cve":"CVE-2026-44973","score":0.0031,"percentile":0.23932,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-qw64-3x98-g7q2","url":"https://osv.dev/vulnerability/GHSA-qw64-3x98-g7q2","summary":"go-billy has path traversal vulnerabilities","modified":"2026-09-10T03:50:55.280354755Z","packages":[{"ecosystem":"Go","name":"github.com/go-git/go-billy/v5","purl":"pkg:golang/github.com/go-git/go-billy/v5","ranges":["<5.9.0"],"fixed":["5.9.0"]},{"ecosystem":"Go","name":"github.com/go-git/go-billy/v6","purl":"pkg:golang/github.com/go-git/go-billy/v6","ranges":["<6.0.0-alpha.1"],"fixed":["6.0.0-alpha.1"]}]},{"id":"GO-2026-5597","url":"https://osv.dev/vulnerability/GO-2026-5597","summary":"Go-billy has path traversal vulnerabilities in github.com/go-git/go-billy","modified":"2026-08-08T21:41:53.102364136Z","packages":[{"ecosystem":"Go","name":"github.com/go-git/go-billy/v5","purl":"pkg:golang/github.com/go-git/go-billy/v5","ranges":["<5.9.0"],"fixed":["5.9.0"]}]}],"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."]}