Is CVE-2018-5226 actively exploited?

No active exploitation of CVE-2018-5226 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2018-5226 be exploited remotely?

Yes. CVE-2018-5226 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2018-5226?

CVE-2018-5226 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2018-5226

NVD-CWE-noinfoPublished: April 25, 2018· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

There was an argument injection vulnerability in Sourcetree for Windows via Mercurial repository tag name that is going to be deleted. An attacker with permission to create a tag on a Mercurial repository linked in Sourcetree for Windows is able to exploit this issue to gain code execution on the system. All versions of Sourcetree for Windows before 2.5.5.0 are affected by this vulnerability.

NVD Source

Technical Analysis

CVE-2018-5226 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.