CVE-2019-5418

There is a File Content Disclosure vulnerability in Action View <5.2.2.1, <5.1.6.2, <5.0.7.2, <4.2.11.1 and v3 where specially crafted accept headers can cause contents of arbitrary files on the target system's filesystem to be exposed.

Score: CVSS 3.1 7.5 High
Status: Analyzed - support@hackerone.com
Published: 2019-03-27
Last modified: 2025-10-21
Known exploited (CISA KEV): since 2025-07-07, action due 2025-07-28: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Weaknesses: CWE-22

Affected products

References

http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00011.html
http://packetstormsecurity.com/files/152178/Rails-5.2.1-Arbitrary-File-Content-Disclosure.html
http://www.openwall.com/lists/oss-security/2019/03/22/1
https://access.redhat.com/errata/RHSA-2019:0796
https://access.redhat.com/errata/RHSA-2019:1147
https://access.redhat.com/errata/RHSA-2019:1149
https://access.redhat.com/errata/RHSA-2019:1289
https://groups.google.com/forum/#%21topic/rubyonrails-security/pFRKI96Sm8Q
https://lists.debian.org/debian-lts-announce/2019/03/msg00042.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y43636TH4D6T46IC6N2RQV…
https://weblog.rubyonrails.org/2019/3/13/Rails-4-2-5-1-5-1-6-2-have-been-released/
https://www.exploit-db.com/exploits/46585/
https://web.archive.org/web/20190313201629/https://weblog.rubyonrails.org/2019/3/13/Rails-4-2-5-1-5-1-6-2-have-been-rel…
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-5418