CVSS 3.0
9.8 criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2018-12026
Critical (9.8) in phusion passenger. EPSS 1.9% chance of exploitation in the next 30 days. Fixed in passenger 5.3.2.
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.
Severity
- EPSS
- 1.9% chance of exploitation in the next 30 days; higher than 79% of CVEs (scores of 2026-10-31)
- CWE
- CWE-59
- Published
- Modified
- Record from
- the NVD, synced
Affected
- phusion:passenger
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-7cv3-gvmc-8mq5 | RubyGems | passenger | >=5.3.0 <5.3.2 | 5.3.2 |