Vulnerability-Lookup

CVE-2026-19590 (GCVE-0-2026-19590)

Vulnerability from cvelistv5 – Published: 2026-09-01 17:04 – Updated: 2026-09-03 14:32

Summary

OpenAI Codex Desktop for Windows and macOS could execute attacker-controlled Git hooks because automated Git operations trusted the repository's local core.hooksPath setting. If a user opens an attacker-prepared repository whose preserved .git/config points core.hooksPath to an attacker-controlled directory, Codex can run a malicious hook while processing the repository. The hook executes outside Codex's command sandbox, without user approval, and with the user's privileges, allowing it to read, change, or delete the user's files and access other resources available to the user's account. An ordinary Git clone does not preserve the attacker-controlled repository-local configuration required for exploitation.

Severity

7.3 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-03 14:29 UTC

CWE

CWE-427 - Uncontrolled Search Path Element

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://github.com/openai/codex/pull/22843

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

Sina Kheirkhah (@SinSinology) of Summoning Team (@SummoningTeam).

Show details on NVD website

JSON

To clipboard

{
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              "attackVector": "LOCAL",
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              "baseScore": 7.3,
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              "confidentialityImpact": "HIGH",
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              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
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        }
      ],
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        {
          "lang": "en",
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        }
      ],
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          }
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            }
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            }
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}

FKIE_CVE-2026-19590

Vulnerability from fkie_nvd - Published: 2026-09-01 18:17 - Updated: 2026-09-03 15:17

Severity

7.3 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	8f4f43ab-ba69-4d92-aa1d-d772184d6fb7	https://github.com/openai/codex/pull/22843

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",
              "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 could execute attacker-controlled Git hooks because automated Git operations trusted the repository\u0027s local core.hooksPath setting. If a user opens an attacker-prepared repository whose preserved .git/config points core.hooksPath to an attacker-controlled directory, Codex can run a malicious hook while processing the repository. The hook executes outside Codex\u0027s command sandbox, without user approval, and with the user\u0027s privileges, allowing it to read, change, or delete the user\u0027s files and access other resources available to the user\u0027s account. An ordinary Git clone does not preserve the attacker-controlled repository-local configuration required for exploitation."
    }
  ],
  "id": "CVE-2026-19590",
  "lastModified": "2026-09-03T15:17:19.780",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
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          "attackVector": "LOCAL",
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          "baseScore": 7.3,
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          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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    }
  ],
  "sourceIdentifier": "8f4f43ab-ba69-4d92-aa1d-d772184d6fb7",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-427"
        }
      ],
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    }
  ]
}

GHSA-433V-PQVH-W4GJ

Vulnerability from github – Published: 2026-09-01 18:30 – Updated: 2026-09-03 15:32

Details

Severity

7.3 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-19590"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-427"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-01T18:17:40Z",
    "severity": "HIGH"
  },
  "details": "OpenAI Codex Desktop for Windows and macOS could execute attacker-controlled Git hooks because automated Git operations trusted the repository\u0027s local core.hooksPath setting. If a user opens an attacker-prepared repository whose preserved .git/config points core.hooksPath to an attacker-controlled directory, Codex can run a malicious hook while processing the repository. The hook executes outside Codex\u0027s command sandbox, without user approval, and with the user\u0027s privileges, allowing it to read, change, or delete the user\u0027s files and access other resources available to the user\u0027s account. An ordinary Git clone does not preserve the attacker-controlled repository-local configuration required for exploitation.",
  "id": "GHSA-433v-pqvh-w4gj",
  "modified": "2026-09-03T15:32:07Z",
  "published": "2026-09-01T18:30:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19590"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openai/codex/pull/22843"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/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

Order JSON

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.

Publication & reservation Sightings KEV catalogs Other timestamps

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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.

Action not permitted

CVE-2026-19590 (GCVE-0-2026-19590)

FKIE_CVE-2026-19590

GHSA-433V-PQVH-W4GJ

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour