Vulnerability-Lookup

CVE-2026-44590 (GCVE-0-2026-44590)

Vulnerability from cvelistv5 – Published: 2026-05-27 19:23 – Updated: 2026-05-28 13:28

Title

Sherlock: Command Injection via pull_request_target in validate_modified_targets.yml

Summary

Sherlock hunts down social media accounts by username across social networks. Prior to 0.16.1, the GitHub Actions workflow validate_modified_targets.yml is vulnerable to command injection via the pull_request_target trigger. Any GitHub user can execute arbitrary commands on the CI runner and exfiltrate the GITHUB_TOKEN by opening a pull request. No approval, review, or merge is required. This vulnerability is fixed in 0.16.1.

Severity

9.3 (Critical)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 13:27 UTC

CWE

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Assigner

GitHub_M mitre root

References

1 reference

URL	Tags
https://github.com/sherlock-project/sherlock/secu…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version	CPE status
sherlock-project	sherlock	Affected: < 0.16.1	guessed

Show details on NVD website

JSON

To clipboard

{
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    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-44590",
                "options": [
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                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-28T13:27:58.922623Z",
                "version": "2.0.3"
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        "title": "CISA ADP Vulnrichment"
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        {
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        }
      ],
      "metrics": [
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          "cvssV3_1": {
            "attackComplexity": "LOW",
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            "userInteraction": "NONE",
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        }
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      "source": {
        "advisory": "GHSA-v6wr-ccr4-x8g9",
        "discovery": "UNKNOWN"
      },
      "title": "Sherlock: Command Injection via pull_request_target in validate_modified_targets.yml"
    }
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      "initial_release_date": "2026-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Sherlock: Command Injection via pull_request_target in validate_modified_targets.yml",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44590.json",
      "version": "3"
    },
    "vulnrichment": {
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}

FKIE_CVE-2026-44590

Vulnerability from fkie_nvd - Published: 2026-05-27 20:16 - Updated: 2026-06-17 10:50

Severity

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

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/sherlock-project/sherlock/security/advisories/GHSA-v6wr-ccr4-x8g9
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/sherlock-project/sherlock/security/advisories/GHSA-v6wr-ccr4-x8g9

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "sherlock",
          "vendor": "sherlock-project",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.16.1"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Sherlock hunts down social media accounts by username across social networks. Prior to 0.16.1, the GitHub Actions workflow validate_modified_targets.yml is vulnerable to command injection via the pull_request_target trigger. Any GitHub user can execute arbitrary commands on the CI runner and exfiltrate the GITHUB_TOKEN by opening a pull request. No approval, review, or merge is required. This vulnerability is fixed in 0.16.1."
    }
  ],
  "id": "CVE-2026-44590",
  "lastModified": "2026-06-17T10:50:53.513",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 9.3,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "LOW",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.7,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-44590",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-05-28T13:27:58.922623Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-05-27T20:16:37.293",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/sherlock-project/sherlock/security/advisories/GHSA-v6wr-ccr4-x8g9"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/sherlock-project/sherlock/security/advisories/GHSA-v6wr-ccr4-x8g9"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

ubuntu-cve-2026-44590

Vulnerability from osv_ubuntu

Published

2026-05-27 20:16

Modified

2026-06-09 07:04

Summary

Details

Severity

9.3 (Critical)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-44590	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-44590	REPORT
	https://github.com/sherlock-project/sherlock/secu…	REPORT
	https://github.com/sherlock-project/sherlock/comm…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "sherlock",
            "binary_version": "0.14.3+git20240119.e3a09f8-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "sherlock",
        "purl": "pkg:deb/ubuntu/sherlock@0.14.3+git20240119.e3a09f8-1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.14.3+git20231006.b336017-1",
        "0.14.3+git20231225.2813b91-1",
        "0.14.3+git20240119.e3a09f8-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "sherlock",
            "binary_version": "0.15.0-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "sherlock",
        "purl": "pkg:deb/ubuntu/sherlock@0.15.0-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.15.0-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "sherlock",
            "binary_version": "0.15.0-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "sherlock",
        "purl": "pkg:deb/ubuntu/sherlock@0.15.0-1build1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.15.0-1",
        "0.15.0-1build1"
      ]
    }
  ],
  "aliases": [],
  "details": "Sherlock hunts down social media accounts by username across social networks. Prior to 0.16.1, the GitHub Actions workflow validate_modified_targets.yml is vulnerable to command injection via the pull_request_target trigger. Any GitHub user can execute arbitrary commands on the CI runner and exfiltrate the GITHUB_TOKEN by opening a pull request. No approval, review, or merge is required. This vulnerability is fixed in 0.16.1.",
  "id": "UBUNTU-CVE-2026-44590",
  "modified": "2026-06-09T07:04:39Z",
  "published": "2026-05-27T20:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-44590"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-44590"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/sherlock-project/sherlock/security/advisories/GHSA-v6wr-ccr4-x8g9"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/sherlock-project/sherlock/commit/2df7c61be8b34b5e45f0a30dfcc7383cf76c8a94"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-44590"
  ]
}

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

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-2026-44590 (GCVE-0-2026-44590)

FKIE_CVE-2026-44590

ubuntu-cve-2026-44590

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature

Related by attack behaviour