CVE Tools
Sign in

CVE-2018-12026

Published: Jun 17, 2018Updated: Nov 21, 2024 Sources: CVE List NVD GHSACWE-59
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
1.9%
Top 22.4%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-59

Affected Products

n/an/a
passengerphusion
On-prem
OSS Libraries / web-framework
passengerRubyGemsOSS Libraries
phusioncommercialOSS Librariesaka passenger, juvia
rubygemspackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
Workaround Available

MITRE ATT&CK

2 techniques
Collection
Discovery
View detailed technique mapping

References

https://blog.phusion.nl/passenger-5-3-2
blog.phusion.nl
https://security.gentoo.org/glsa/201807-02
security.gentoo.org
https://nvd.nist.gov/vuln/detail/CVE-2018-12026
nvd.nist.gov
and 4 more references View all →

Timeline

Published
Jun 17, 2018
Last Updated
Nov 21, 2024

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2018-12026 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows