{"cve":"CVE-2017-0903","nvd":{"published":"2017-10-11T18:29:00.583","modified":"2026-06-17T00:58:29.913","status":"Modified","description":"RubyGems versions between 2.0.0 and 2.6.13 are vulnerable to a possible remote code execution vulnerability. YAML deserialization of gem specifications can bypass class white lists. Specially crafted serialized objects can possibly be used to escalate to remote code execution.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-502"],"references":["http://blog.rubygems.org/2017/10/09/2.6.14-released.html","http://blog.rubygems.org/2017/10/09/unsafe-object-deserialization-vulnerability.html","http://www.securityfocus.com/bid/101275","https://access.redhat.com/errata/RHSA-2017:3485","https://access.redhat.com/errata/RHSA-2018:0378"],"products":["canonical:ubuntu_linux","debian:debian_linux","redhat:enterprise_linux_desktop","redhat:enterprise_linux_server","redhat:enterprise_linux_server_aus","redhat:enterprise_linux_server_eus","redhat:enterprise_linux_server_tus","redhat:enterprise_linux_workstation","rubygems:rubygems"],"source":"nvd","synced_at":"2026-10-19T20:46:01.145313090+00:00"},"epss":{"cve":"CVE-2017-0903","score":0.15853,"percentile":0.96883,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-mqwr-4qf2-2hcv","url":"https://osv.dev/vulnerability/GHSA-mqwr-4qf2-2hcv","summary":"RubyGems vulnerable to Deserialization of Untrusted Data","modified":"2024-02-22T05:43:12.105884Z","packages":[{"ecosystem":"RubyGems","name":"rubygems-update","purl":"pkg:gem/rubygems-update","ranges":[">=2.0.0 <2.6.14"],"fixed":["2.6.14"]}]}],"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."]}