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CVE-2016-10345

26
FAUCET Score

CVE-2016-10345 describes a local privilege escalation vulnerability in Phusion Passenger versions prior to 5.1.0. During the passenger-install-nginx-module execution, a predictable temporary filename was used, allowing a local attacker to gain the privileges of the passenger user. This vulnerability is rated as High severity (CVSS 7.8), indicating a low attack complexity and the potential for high impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.0.30CPE matchmatch criteria
cpe:2.3:a:phusion:passenger:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.46%
Probability of exploitation in next 30 days
EPSS Percentile
37.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0046 is in the 78th percentile among its peer group of 16,994 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

github_advisorypatch availablevia nvd_reference
View patch
rubygemspatch availablevia ghsa
Product: passengerFixed in: 5.1.0
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 6 (Juno) InstallerFixed in: ruby193-rubygem-passenger
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 6 (Juno) InstallerFixed in: rubygem-passenger
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Enterprise 2Fixed in: ruby-193-rubygem-passenger
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Enterprise 2Fixed in: ruby200-rubygem-passenger
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Enterprise 2Fixed in: rubygem-passenger

Vendor Advisories (2)

rubygemsGHSA-cqxw-3p7v-p9grhigh

Phusion Passenger uses a known /tmp filename

Aug 21, 2018
redhatCVE-2016-10345Moderate

passenger: File overwrite vulnerability in passenger-install-nginx-module

Nov 9, 2016

References

github.com / phusion/passenger/blob/stable-5.1/CHANGELOG
PatchRelease Notes
github.com / phusion/passenger/commit/e5b4b0824d6b648525b4bf63d9fa37e5beeae441
Patch