CVE-2018-20234

Severity: high (CVSS 8.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-03-08 · updated 2026-06-17
Weakness: CWE-88

Description

There was an argument injection vulnerability in Atlassian Sourcetree for macOS from version 1.2 before version 3.1.1 via filenames in Mercurial repositories. A remote attacker with permission to commit to a Mercurial repository linked in Sourcetree for macOS is able to exploit this issue to gain code execution on the system.

Affected products

Atlassian Sourcetree for Windows: from 1.2.0 before 3.1.1 — fixed in 3.1.1

How to fix

Upgrade to a fixed version: Atlassian Sourcetree for Windows 3.1.1. Check the vendor advisory for mitigations.

References

http://packetstormsecurity.com/files/152173/Sourcetree-Git-Arbitrary-Code-Execution-URL-Handling.html
http://www.securityfocus.com/bid/107414
https://jira.atlassian.com/browse/SRCTREE-6391
https://seclists.org/bugtraq/2019/Mar/30
http://packetstormsecurity.com/files/152173/Sourcetree-Git-Arbitrary-Code-Execution-URL-Handling.html
http://www.securityfocus.com/bid/107414
https://jira.atlassian.com/browse/SRCTREE-6391
https://seclists.org/bugtraq/2019/Mar/30

Get alerted when CVE-2018-20234 or the next vulnerability affects your stack