Vulnerability-Lookup

GHSA-R738-32MW-386P

Vulnerability from github – Published: 2026-01-30 12:31 – Updated: 2026-01-30 12:31

Details

In the Eclipse Theia Website repository, the GitHub Actions workflow .github/workflows/preview.yml used pull_request_target trigger while checking out and executing untrusted pull request code. This allowed any GitHub user to execute arbitrary code in the repository's CI environment with access to repository secrets and a GITHUB_TOKEN with extensive write permissions (contents:write, packages:write, pages:write, actions:write). An attacker could exfiltrate secrets, publish malicious packages to the eclipse-theia organization, modify the official Theia website, and push malicious code to the repository.

Severity

10.0 (Critical)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-1699"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-829"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-30T10:15:56Z",
    "severity": "CRITICAL"
  },
  "details": "In the Eclipse Theia Website repository, the GitHub Actions workflow .github/workflows/preview.yml used pull_request_target trigger while checking out and executing untrusted pull request code. This allowed any GitHub user to execute arbitrary code in the repository\u0027s CI environment with access to repository secrets and a GITHUB_TOKEN with extensive write permissions (contents:write, packages:write, pages:write, actions:write). An attacker could exfiltrate secrets, publish malicious packages to the eclipse-theia organization, modify the official Theia website, and push malicious code to the repository.",
  "id": "GHSA-r738-32mw-386p",
  "modified": "2026-01-30T12:31:20Z",
  "published": "2026-01-30T12:31:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1699"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/332"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-1699 (GCVE-0-2026-1699)

Vulnerability from cvelistv5 – Published: 2026-01-30 09:57 – Updated: 2026-02-02 19:26

Summary

Severity

10 (Critical)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-02 19:26 UTC

CWE

CWE-829 - Inclusion of Functionality from Untrusted Control Sphere

Assigner

eclipse mitre root

References

1 reference

URL	Tags
https://gitlab.eclipse.org/security/vulnerability…

Impacted products

1 product

Vendor	Product	Version
Eclipse Foundation	Eclipse Theia - Website	Affected: 0 , < 2fb0cc4bfc372cfaef79feb4eebb6563778b2560 (git)

Credits

Barak Haryati | JFrog

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-1699",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-02T19:26:22.478406Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-02T19:26:31.652Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Eclipse Theia - Website",
          "repo": "https://github.com/eclipse-theia/theia-website",
          "vendor": "Eclipse Foundation",
          "versions": [
            {
              "lessThan": "2fb0cc4bfc372cfaef79feb4eebb6563778b2560",
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      ],
      "credits": [
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          "lang": "en",
          "type": "finder",
          "value": "Barak Haryati | JFrog"
        }
      ],
      "descriptions": [
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          "supportingMedia": [
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              "type": "text/html",
              "value": "In the Eclipse Theia Website repository, the GitHub Actions workflow \u003ccode\u003e.github/workflows/preview.yml\u003c/code\u003e used \u003ccode\u003epull_request_target\u003c/code\u003e trigger while checking out and executing untrusted pull request code. This allowed any GitHub user to execute arbitrary code in the repository\u0027s CI environment with access to repository secrets and a GITHUB_TOKEN with extensive write permissions (contents:write, packages:write, pages:write, actions:write). An attacker could exfiltrate secrets, publish malicious packages to the eclipse-theia organization, modify the official Theia website, and push malicious code to the repository."
            }
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        }
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      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 10,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
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          "format": "CVSS",
          "scenarios": [
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              "lang": "en",
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      "problemTypes": [
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      "references": [
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          "url": "https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/332"
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      "source": {
        "discovery": "UNKNOWN"
      },
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  "cveMetadata": {
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    "datePublished": "2026-01-30T09:57:14.877Z",
    "dateReserved": "2026-01-30T09:38:43.466Z",
    "dateUpdated": "2026-02-02T19:26:31.652Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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

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