FKIE_CVE-2026-19593
Vulnerability from fkie_nvd - Published: 2026-09-01 18:17 - Updated: 2026-09-02 18:19
Severity
Summary
OpenAI Codex Desktop for Windows and macOS automatically inspected Git metadata and working-tree status when a user opened a workspace. If the workspace contains a repository with preserved attacker-controlled .git/config, the attr.tree setting and a configured clean or process filter can cause Git to run an attacker-controlled program. The program runs outside Codex's command sandbox with the signed-in user's privileges, without a workspace-trust prompt, command approval, or interaction with a model. The attacker can read, modify, or delete files and access credentials available to that user. Exploitation requires Git to be available on PATH and the user to open the attacker-prepared repository with its local Git configuration intact. An ordinary Git clone does not copy the source repository's .git/config and is not sufficient by itself.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"platforms": [
"macOS"
],
"product": "Codex Desktop",
"vendor": "OpenAI",
"versions": [
{
"lessThanOrEqual": "26.513.31313",
"status": "affected",
"version": "260202.0859",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "26.519.22136"
}
]
},
{
"platforms": [
"Windows"
],
"product": "Codex Desktop",
"vendor": "OpenAI",
"versions": [
{
"lessThanOrEqual": "26.513.40821",
"status": "affected",
"version": "26.304.38",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "26.519.21041"
}
]
},
{
"platforms": [
"Windows"
],
"product": "Codex Desktop (Microsoft Store package)",
"vendor": "OpenAI",
"versions": [
{
"lessThanOrEqual": "26.513.4821.0",
"status": "affected",
"version": "26.304.38.0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "26.519.2081.0"
}
]
}
],
"source": "8f4f43ab-ba69-4d92-aa1d-d772184d6fb7"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "OpenAI Codex Desktop for Windows and macOS automatically inspected Git metadata and working-tree status when a user opened a workspace. If the workspace contains a repository with preserved attacker-controlled .git/config, the attr.tree setting and a configured clean or process filter can cause Git to run an attacker-controlled program. The program runs outside Codex\u0027s command sandbox with the signed-in user\u0027s privileges, without a workspace-trust prompt, command approval, or interaction with a model. The attacker can read, modify, or delete files and access credentials available to that user. Exploitation requires Git to be available on PATH and the user to open the attacker-prepared repository with its local Git configuration intact. An ordinary Git clone does not copy the source repository\u0027s .git/config and is not sufficient by itself."
}
],
"id": "CVE-2026-19593",
"lastModified": "2026-09-02T18:19:16.337",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-19593",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-02T17:19:21.924083Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-09-01T18:17:40.480",
"references": [
{
"source": "8f4f43ab-ba69-4d92-aa1d-d772184d6fb7",
"url": "https://openai.com/codex"
}
],
"sourceIdentifier": "8f4f43ab-ba69-4d92-aa1d-d772184d6fb7",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-15"
}
],
"source": "8f4f43ab-ba69-4d92-aa1d-d772184d6fb7",
"type": "Secondary"
}
]
}
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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.
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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.
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.
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