Vulnerability-Lookup

CVE-2026-19593 (GCVE-0-2026-19593)

Vulnerability from cvelistv5 – Published: 2026-09-01 17:10 – Updated: 2026-10-15 16:39

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.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-02 17:19 UTC

CWE

CWE-15 - External Control of System or Configuration Setting

Assigner

OAI CNA under the mitre root

CNA scorecard – unranked: 6 records in the last 180 days, 10 needed details

References

1 reference

URL	Tags
https://www.zerodayinitiative.com/advisories/ZDI-…

Impacted products

3 products

Vendor	Product	Version	CPE status
OpenAI	Codex Desktop	Affected: 260202.0859 , ≤ 26.513.31313 (custom) Unaffected: 26.519.22136	guessed
OpenAI	Codex Desktop	Affected: 26.304.38 , ≤ 26.513.40821 (custom) Unaffected: 26.519.21041	guessed
OpenAI	Codex Desktop (Microsoft Store package)	Affected: 26.304.38.0 , ≤ 26.513.4821.0 (custom) Unaffected: 26.519.2081.0	guessed

Credits

Satoki Tsuji (@satoki00) / Ikotas Labs, Inc.

Show details on NVD website

JSON

To clipboard

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    "dateReserved": "2026-08-12T03:54:42.487Z",
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FKIE_CVE-2026-19593

Vulnerability from fkie_nvd - Published: 2026-09-01 18:17 - Updated: 2026-10-15 17:17

Severity

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	8f4f43ab-ba69-4d92-aa1d-d772184d6fb7	https://www.zerodayinitiative.com/advisories/ZDI-26-651/

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "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",
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            }
          ]
        },
        {
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            },
            {
              "status": "unaffected",
              "version": "26.519.2081.0"
            }
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        }
      ],
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      "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": "2026-10-15T17:17:21.530",
  "metrics": {
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        "cvssData": {
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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  "sourceIdentifier": "8f4f43ab-ba69-4d92-aa1d-d772184d6fb7",
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}

GHSA-HCF6-9Q9G-XX3C

Vulnerability from github – Published: 2026-09-01 18:30 – Updated: 2026-10-15 18:31

Details

Severity

9.8 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-19593"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-15"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-01T18:17:40Z",
    "severity": "CRITICAL"
  },
  "details": "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": "GHSA-hcf6-9q9g-xx3c",
  "modified": "2026-10-15T18:31:35Z",
  "published": "2026-09-01T18:30:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19593"
    },
    {
      "type": "WEB",
      "url": "https://openai.com/codex"
    },
    {
      "type": "WEB",
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-26-651"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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

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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.

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.

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CVE-2026-19593 (GCVE-0-2026-19593)

FKIE_CVE-2026-19593

GHSA-HCF6-9Q9G-XX3C

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Related by attack behaviour