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CVE Record

CVE-2018-13396: There was an argument injection vulnerability in Sourcetree for macOS from version 1.0b2 before version 3.0...

There was an argument injection vulnerability in Sourcetree for macOS from version 1.0b2 before version 3.0.0 via Git subrepositories in Mercurial repositories. An 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.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This issue affects Sourcetree for macOS before 3.0.0. A malicious or compromised committer to a Mercurial repository linked in Sourcetree could trigger argument injection through Git subrepositories and obtain code execution on a developer workstation.

Executive priority

Treat this as a targeted developer-workstation risk, not a broad perimeter emergency. Prioritize teams using Sourcetree for macOS with Mercurial workflows, because successful exploitation can lead to code execution on trusted engineering systems.

Technical view

CVE-2018-13396 is an argument injection flaw in Sourcetree for macOS versions from 1.0b2 before 3.0.0. The reported vector involves Git subrepositories inside Mercurial repositories. Successful exploitation requires permission to commit to a relevant Mercurial repository opened or linked by Sourcetree.

Likely exposure

Exposure is most likely on macOS developer endpoints running Sourcetree before 3.0.0 and working with Mercurial repositories that include Git subrepositories. Organizations that do not use Mercurial or Sourcetree for macOS likely have minimal exposure.

Exploitation context

The source bundle does not show CISA KEV listing, public exploitation, or exploit maturity. The described attack is not unauthenticated; it requires repository commit access, making insider, supply-chain, or compromised contributor scenarios more relevant than broad internet exploitation.

Researcher notes

Available public evidence is sparse: no CVSS, CWE, or detailed advisory text is included in the bundle. The key confirmed facts are affected product/version range, argument injection class, Mercurial plus Git subrepository vector, commit-permission prerequisite, and code-execution impact.

Mitigation direction

  • Upgrade Sourcetree for macOS to version 3.0.0 or later.
  • Check Atlassian guidance for any additional vendor-recommended remediation.
  • Restrict commit access to Mercurial repositories used by developers.
  • Avoid opening untrusted Mercurial repositories in vulnerable Sourcetree versions.
  • Review repository dependencies and subrepositories from untrusted contributors.

Validation and detection

  • Inventory macOS endpoints with Sourcetree installed.
  • Confirm no Sourcetree for macOS versions earlier than 3.0.0 remain in use.
  • Identify Mercurial repositories linked in Sourcetree that contain Git subrepositories.
  • Review contributor and committer permissions for those repositories.
  • Verify endpoint software management enforces the upgraded Sourcetree version.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2018-13396 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
AtlassianSourcetree for macOS1.0b2, unspecifiedListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.