{"cve":"CVE-2018-12027","nvd":{"published":"2018-06-17T20:29:00.417","modified":"2026-06-17T01:37:01.697","status":"Modified","description":"An Insecure Permissions vulnerability in SpawningKit in Phusion Passenger 5.3.x before 5.3.2 causes information disclosure in the following situation: given a Passenger-spawned application process that reports that it listens on a certain Unix domain socket, if any of the parent directories of said socket are writable by a normal user that is not the application's user, then that non-application user can swap that directory with something else, resulting in traffic being redirected to a non-application user's process through an alternative Unix domain socket.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-200","CWE-732"],"references":["https://blog.phusion.nl/passenger-5-3-2","https://security.gentoo.org/glsa/201807-02","https://blog.phusion.nl/passenger-5-3-2","https://security.gentoo.org/glsa/201807-02"],"products":["phusion:passenger"],"source":"nvd","synced_at":"2026-10-19T20:51:47.459859389+00:00"},"epss":{"cve":"CVE-2018-12027","score":0.01071,"percentile":0.64891,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-whfx-877c-5p28","url":"https://osv.dev/vulnerability/GHSA-whfx-877c-5p28","summary":"Insecure Permissions in Phusion Passenger","modified":"2024-02-16T08:19:17.889846Z","packages":[{"ecosystem":"RubyGems","name":"passenger","purl":"pkg:gem/passenger","ranges":[">=5.3.0 <5.3.2"],"fixed":["5.3.2"]}]}],"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."]}