{"cve":"CVE-2018-12026","nvd":{"published":"2018-06-17T20:29:00.353","modified":"2026-06-17T01:37:01.573","status":"Modified","description":"During the spawning of a malicious Passenger-managed application, SpawningKit in Phusion Passenger 5.3.x before 5.3.2 allows such applications to replace key files or directories in the spawning communication directory with symlinks. This then could result in arbitrary reads and writes, which in turn can result in information disclosure and privilege escalation.","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-59"],"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-2018-12026","score":0.01918,"percentile":0.79876,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-7cv3-gvmc-8mq5","url":"https://osv.dev/vulnerability/GHSA-7cv3-gvmc-8mq5","summary":"Phusion Passenger SpawningKit Contains Arbitrary Read/Write Vulnerability","modified":"2024-02-20T05:43:13.181632Z","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."]}