Critical severity9.8NVD Advisory· Published Jun 17, 2018· Updated Jun 17, 2026
CVE-2018-12026
CVE-2018-12026
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
passengerRubyGems | >= 5.3.0, < 5.3.2 | 5.3.2 |
Affected products
1Patches
Vulnerability mechanics
References
7- blog.phusion.nl/passenger-5-3-2nvdMitigationVendor AdvisoryWEB
- github.com/advisories/GHSA-7cv3-gvmc-8mq5ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2018-12026ghsaADVISORY
- security.gentoo.org/glsa/201807-02nvdThird Party AdvisoryWEB
- blog.phusion.nl/2018/06/12/passenger-5-3-2-various-security-fixesghsaWEB
- github.com/phusion/passenger/commit/fd3717a3cd357aa0e80e1e81d4dc94a1eaf928f1ghsaWEB
- github.com/rubysec/ruby-advisory-db/blob/master/gems/passenger/CVE-2018-12026.ymlghsaWEB
News mentions
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