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.
CVE-2018-5226
HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence
Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 8.8; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 8.8Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.8
- EG Score
- 8.8(medium)
- EPSS
- 70.5%
- KEV
- Not listed
Published
April 25, 2018
Last Modified
November 21, 2024
References (2)
- security@atlassianhttps://jira.atlassian.com/browse/SRCTREEWIN-8509
- af854a3a-2127-422b-91ae-364da2661108https://jira.atlassian.com/browse/SRCTREEWIN-8509
Data Freshness Timeline
(refreshed 12× in last 7d / 47× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-07 13:42 UTCEPSS rescore
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- 2026-05-28 08:36 UTCEG score recompute
- 2026-05-28 08:36 UTCGHSA enrichment
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Frequently asked(5)
What is CVE-2018-5226?
CVE-2018-5226 is a high vulnerability published on April 25, 2018. 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…
When was CVE-2018-5226 disclosed?
CVE-2018-5226 was first published in the National Vulnerability Database on April 25, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-5226 actively exploited?
CVE-2018-5226 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 70.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-5226?
CVE-2018-5226 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2018-5226?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-5226, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2018-5226
Is Your Infrastructure Affected by CVE-2018-5226?
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