FKIE_CVE-2026-21575
Vulnerability from fkie_nvd - Published: 2026-07-21 18:16 - Updated: 2026-10-24 19:10
Severity
Summary
This High severity RCE (Remote Code Execution) vulnerability was introduced in version 3.4.11 of Sourcetree for Mac and Sourcetree for Windows.
This RCE (Remote Code Execution) vulnerability, with a CVSS Score of 7.1, allows an authenticated attacker to execute arbitrary code which has high impact to confidentiality, high impact to integrity, high impact to availability, and requires user interaction.
Atlassian recommends that Sourcetree for Mac and Sourcetree for Windows customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions:
* Sourcetree for Mac and Sourcetree for Windows 3.4: Upgrade to a release greater than or equal to 3.4.13
See the release notes (https://www.sourcetreeapp.com/download-archives). You can download the latest version of Sourcetree for Mac and Sourcetree for Windows from the download center (https://www.sourcetreeapp.com/download-archives).
This vulnerability was reported via our Bug Bounty program.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| atlassian | sourcetree | * | |
| atlassian | sourcetree | * |
{
"affected": [
{
"affectedData": [
{
"product": "Sourcetree for Mac",
"vendor": "Atlassian",
"versions": [
{
"status": "affected",
"version": "All versions from 3.4.11 to 3.4.12 inclusive"
},
{
"status": "unaffected",
"version": "All versions from 3.4.13"
}
]
}
],
"source": "security@atlassian.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:atlassian:sourcetree:*:*:*:*:*:macos:*:*",
"matchCriteriaId": "6C25407E-198E-43D6-A752-463CE72E4421",
"versionEndExcluding": "3.4.13",
"versionStartIncluding": "3.4.11",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:atlassian:sourcetree:*:*:*:*:*:windows:*:*",
"matchCriteriaId": "1A3303E7-2F00-4469-91F0-F39DBE138B1F",
"versionEndExcluding": "3.4.13",
"versionStartIncluding": "3.4.11",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "This High severity RCE (Remote Code Execution) vulnerability was introduced in version 3.4.11 of Sourcetree for Mac and Sourcetree for Windows. \n\t\n\tThis RCE (Remote Code Execution) vulnerability, with a CVSS Score of 7.1, allows an authenticated attacker to execute arbitrary code which has high impact to confidentiality, high impact to integrity, high impact to availability, and requires user interaction. \n\t\n\tAtlassian recommends that Sourcetree for Mac and Sourcetree for Windows customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions:\n\t\t\n\t\t* Sourcetree for Mac and Sourcetree for Windows 3.4: Upgrade to a release greater than or equal to 3.4.13\n\t\t\n\t\t\n\t\n\tSee the release notes (https://www.sourcetreeapp.com/download-archives). You can download the latest version of Sourcetree for Mac and Sourcetree for Windows from the download center (https://www.sourcetreeapp.com/download-archives). \n\t\n\tThis vulnerability was reported via our Bug Bounty program."
},
{
"lang": "es",
"value": "Esta vulnerabilidad RCE (ejecuci\u00f3n remota de c\u00f3digo) de severidad Alta fue introducida en la versi\u00f3n 3.4.11 de Sourcetree para Mac y Sourcetree para Windows.\n\nEsta vulnerabilidad RCE (ejecuci\u00f3n remota de c\u00f3digo), con una puntuaci\u00f3n CVSS de 7.1, permite a un atacante autenticado ejecutar c\u00f3digo arbitrario, lo que tiene alto impacto en la confidencialidad, alto impacto en la integridad, alto impacto en la disponibilidad y requiere interacci\u00f3n del usuario.\n\nAtlassian recomienda que los clientes de Sourcetree para Mac y Sourcetree para Windows actualicen a la \u00faltima versi\u00f3n; si no pueden hacerlo, actualicen su instancia a una de las versiones fijas compatibles especificadas:\n\n* Sourcetree para Mac y Sourcetree para Windows 3.4: Actualizar a una versi\u00f3n mayor o igual a 3.4.13\n\nConsulte las notas de la versi\u00f3n (https://www.sourcetreeapp.com/download-archives). Puede descargar la \u00faltima versi\u00f3n de Sourcetree para Mac y Sourcetree para Windows desde el centro de descargas (https://www.sourcetreeapp.com/download-archives).\n\nEsta vulnerabilidad fue reportada a trav\u00e9s de nuestro programa de recompensas por errores (Bug Bounty)."
}
],
"id": "CVE-2026-21575",
"lastModified": "2026-10-24T19:10:00.127",
"metrics": {
"cvssMetricV30": [
{
"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
"version": "3.0"
},
"exploitabilityScore": 1.2,
"impactScore": 5.9,
"source": "security@atlassian.com",
"type": "Secondary"
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.1,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-21575",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-23T00:00:00+00:00",
"version": "2.0.3"
}
}
]
},
"published": "2026-07-21T18:16:57.170",
"references": [
{
"source": "security@atlassian.com",
"tags": [
"Vendor Advisory"
],
"url": "https://confluence.atlassian.com/pages/viewpage.action?pageId=1821999345"
},
{
"source": "security@atlassian.com",
"tags": [
"Issue Tracking"
],
"url": "https://jira.atlassian.com/browse/SRCTREE-8275"
}
],
"sourceIdentifier": "security@atlassian.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-94"
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.