GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

FKIE_CVE-2026-19593

Vulnerability from fkie_nvd - Published: 2026-09-01 18:17 - Updated: 2026-09-02 18:19
Severity
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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
8f4f43ab-ba69-4d92-aa1d-d772184d6fb7https://openai.com/codex
Impacted products
Vendor Product Version
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",
              "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": "Undergoing Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-15"
        }
      ],
      "source": "8f4f43ab-ba69-4d92-aa1d-d772184d6fb7",
      "type": "Secondary"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.


Detection rules are retrieved from Rulezet.


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.