CVE-2019-15845

Name: CVE-2019-15845
Creator: NVD / NIST
Published: 2019-11-26T17:15:11.89+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 3.29%

Last modified Jun 17, 2026

CVE-2019-15845 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 mishandles path checking within File.fnmatch functions.. EPSS estimates a 3.29% chance of exploitation in the next 30 days.

Description

Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 mishandles path checking within File.fnmatch functions.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS Probability

3.29%

86.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Ruby-Lang	Ruby	>= 2.4.0, <= 2.4.7
Ruby-Lang	Ruby	>= 2.5.0, <= 2.5.6
Ruby-Lang	Ruby	>= 2.6.0, <= 2.6.4
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	19.04
Canonical	Ubuntu Linux	19.10

References

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00041.html
https://hackerone.com/reports/449617Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/11/msg00025.htmlMailing List, Third Party Advisory
https://seclists.org/bugtraq/2019/Dec/31Mailing List, Third Party Advisory
https://seclists.org/bugtraq/2019/Dec/32Mailing List, Third Party Advisory
https://security.gentoo.org/glsa/202003-06
https://usn.ubuntu.com/4201-1/Third Party Advisory
https://www.debian.org/security/2019/dsa-4587Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2020.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00041.html
https://hackerone.com/reports/449617Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/11/msg00025.htmlMailing List, Third Party Advisory
https://seclists.org/bugtraq/2019/Dec/31Mailing List, Third Party Advisory
https://seclists.org/bugtraq/2019/Dec/32Mailing List, Third Party Advisory
https://security.gentoo.org/glsa/202003-06
https://usn.ubuntu.com/4201-1/Third Party Advisory
https://www.debian.org/security/2019/dsa-4587Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2020.htmlThird Party Advisory

Timeline

Published: Nov 26, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-15845?

Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 mishandles path checking within File.fnmatch functions.

How severe is CVE-2019-15845?

CVE-2019-15845 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 3.29% probability of exploitation in the next 30 days.

How do I fix CVE-2019-15845?

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-2019-15845?

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

Scan your code now

Source: NVD / NIST