CVE-2018-16476

Name: CVE-2018-16476
Creator: NVD / NIST
Published: 2018-11-30T19:29:00.22+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.56%

Last modified Jun 17, 2026

CVE-2018-16476 is a vulnerability of currently unknown severity. A Broken Access Control vulnerability in Active Job versions >= 4.2.0 allows an attacker to craft user input which can cause Active Job to deserialize it using GlobalId and give them access to information that they should not have. This vulnerability has been fixed in versions 4.2.11, 5.0.7.1, 5.1.6.1, and 5.2.1.1.. EPSS estimates a 2.56% chance of exploitation in the next 30 days.

Description

A Broken Access Control vulnerability in Active Job versions >= 4.2.0 allows an attacker to craft user input which can cause Active Job to deserialize it using GlobalId and give them access to information that they should not have. This vulnerability has been fixed in versions 4.2.11, 5.0.7.1, 5.1.6.1, and 5.2.1.1.

Metrics

EPSS Probability

2.56%

83.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Rubyonrails	Rails	>= 4.2.0, < 4.2.11
Rubyonrails	Rails	>= 5.0.0, < 5.0.7.1
Rubyonrails	Rails	>= 5.1.0, < 5.1.6.1
Rubyonrails	Rails	>= 5.2.0, < 5.2.1.1
Redhat	Cloudforms	4.6

References

https://access.redhat.com/errata/RHSA-2019:0600Third Party Advisory
https://groups.google.com/d/msg/rubyonrails-security/FL4dSdzr2zw/zjKVhF4qBAAJExploit, Mailing List, Mitigation, Third Party Advisory
https://weblog.rubyonrails.org/2018/11/27/Rails-4-2-5-0-5-1-5-2-have-been-released/Vendor Advisory
https://access.redhat.com/errata/RHSA-2019:0600Third Party Advisory
https://groups.google.com/d/msg/rubyonrails-security/FL4dSdzr2zw/zjKVhF4qBAAJExploit, Mailing List, Mitigation, Third Party Advisory
https://weblog.rubyonrails.org/2018/11/27/Rails-4-2-5-0-5-1-5-2-have-been-released/Vendor Advisory

Timeline

Published: Nov 30, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-16476?

How severe is CVE-2018-16476?

Severity scoring for CVE-2018-16476 is pending analysis. The EPSS model estimates a 2.56% probability of exploitation in the next 30 days.

How do I fix CVE-2018-16476?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-16476?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST