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Vulnerability record · CVE-2018-16476 · published 30 November 2018

CVE-2018-16476: Rubyonrails rails improper access control vulnerability

Rubyonrails · Rails

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.

7.5 CVSS 3.0 High EPSS 2.6% · top 15.5% CWE-284 · Improper access controlCWE-502 · Deserialization of untrusted data
7.5CVSS 3.0 base score, v2 5.0
2.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/errata/RHSA-2019:0600 Third Party Advisory
https://groups.google.com/d/msg/rubyonrails-security/FL4dSdzr2zw/zjKVhF4qBAAJ ExploitMailing ListMitigationThird 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-2019:0600 Third Party Advisory
https://groups.google.com/d/msg/rubyonrails-security/FL4dSdzr2zw/zjKVhF4qBAAJ ExploitMailing ListMitigationThird Party Advisory
https://weblog.rubyonrails.org/2018/11/27/Rails-4-2-5-0-5-1-5-2-have-been-released/ Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2018-16476), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.