Vulnerability-Lookup

ubuntu-cve-2026-50023

Vulnerability from osv_ubuntu

Published

2026-06-23 17:17

Modified

2026-06-29 11:35

Summary

Details

yt-dlp is a command-line audio/video downloader. Prior to 2026.06.09, a vulnerability exists in yt-dlp that allows a remote attacker to write arbitrary OS-shortcut files (such as .desktop, .url, .webloc) to the user's filesystem, bypassing the remediation for CVE-2024-38519. The allowlist explicitly included the unsafe extensions .desktop, .url, and .webloc so that the functionality of the --write-link option (and its variants) could be preserved. These allowlist inclusions can be exploited by an attacker to write malicious OS-shortcut files in the context of a media or subtitles download. This vulnerability is fixed in 2026.06.09.

Severity

8.3 (High)


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

9.6 (Critical)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-50023	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-50023	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "yt-dlp",
            "binary_version": "2022.04.08-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "yt-dlp",
        "purl": "pkg:deb/ubuntu/yt-dlp@2022.04.08-1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2021.12.01-1",
        "2021.12.27-1",
        "2022.01.21-1",
        "2022.02.04-1",
        "2022.03.08.1-1",
        "2022.04.08-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "yt-dlp",
            "binary_version": "2024.04.09-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "yt-dlp",
        "purl": "pkg:deb/ubuntu/yt-dlp@2024.04.09-1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2023.07.06-1",
        "2023.10.13-1ubuntu1",
        "2023.11.16-1",
        "2023.12.30-1ubuntu1",
        "2024.03.10-1",
        "2024.04.09-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "yt-dlp",
            "binary_version": "2025.09.23-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "yt-dlp",
        "purl": "pkg:deb/ubuntu/yt-dlp@2025.09.23-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2025.03.27-1",
        "2025.04.30-1",
        "2025.05.22-1",
        "2025.06.09-1",
        "2025.06.25-1",
        "2025.06.30-1",
        "2025.07.21-1",
        "2025.08.11-1",
        "2025.08.20-1",
        "2025.08.22-1",
        "2025.08.27-1",
        "2025.09.05-1",
        "2025.09.23-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "yt-dlp",
            "binary_version": "2026.03.17-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "yt-dlp",
        "purl": "pkg:deb/ubuntu/yt-dlp@2026.03.17-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2025.09.23-1",
        "2025.10.22-1",
        "2025.11.12-1",
        "2025.12.08-1",
        "2026.01.31-1",
        "2026.03.17-1"
      ]
    }
  ],
  "aliases": [],
  "details": "yt-dlp is a command-line audio/video downloader. Prior to 2026.06.09, a vulnerability exists in yt-dlp that allows a remote attacker to write arbitrary OS-shortcut files (such as .desktop, .url, .webloc) to the user\u0027s filesystem, bypassing the remediation for CVE-2024-38519. The allowlist explicitly included the unsafe extensions .desktop, .url, and .webloc so that the functionality of the --write-link option (and its variants) could be preserved. These allowlist inclusions can be exploited by an attacker to write malicious OS-shortcut files in the context of a media or subtitles download. This vulnerability is fixed in 2026.06.09.",
  "id": "UBUNTU-CVE-2026-50023",
  "modified": "2026-06-29T11:35:23Z",
  "published": "2026-06-23T17:17:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-50023"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-50023"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-50023"
  ]
}

CVE-2026-50023 (GCVE-0-2026-50023)

Vulnerability from cvelistv5 – Published: 2026-06-23 16:08 – Updated: 2026-06-25 13:45

Title

yt-dlp: Dangerous file type creation via insufficient filename sanitization (Bypass of CVE-2024-38519)

Summary

Severity

8.3 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-25 03:55 UTC

CWE

CWE-641 - Improper Restriction of Names for Files and Other Resources

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/yt-dlp/yt-dlp/security/advisor…	x_refsource_CONFIRM
https://github.com/yt-dlp/yt-dlp/commit/e578e265f…	x_refsource_MISC
https://github.com/yt-dlp/yt-dlp-nightly-builds/r…	x_refsource_MISC
https://github.com/yt-dlp/yt-dlp/releases/tag/202…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
yt-dlp	yt-dlp	Affected: < 2026.06.09

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-50023",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-25T03:55:47.131223Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-25T13:45:44.576Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "yt-dlp",
          "vendor": "yt-dlp",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2026.06.09"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "yt-dlp is a command-line audio/video downloader. Prior to 2026.06.09, a vulnerability exists in yt-dlp that allows a remote attacker to write arbitrary OS-shortcut files (such as .desktop, .url, .webloc) to the user\u0027s filesystem, bypassing the remediation for CVE-2024-38519. The allowlist explicitly included the unsafe extensions .desktop, .url, and .webloc so that the functionality of the --write-link option (and its variants) could be preserved. These allowlist inclusions can be exploited by an attacker to write malicious OS-shortcut files in the context of a media or subtitles download. This vulnerability is fixed in 2026.06.09."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-641",
              "description": "CWE-641: Improper Restriction of Names for Files and Other Resources",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-23T16:08:43.003Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/yt-dlp/yt-dlp/security/advisories/GHSA-c6mh-fpjc-4pr3",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/yt-dlp/yt-dlp/security/advisories/GHSA-c6mh-fpjc-4pr3"
        },
        {
          "name": "https://github.com/yt-dlp/yt-dlp/commit/e578e265f7c6ca94a74b30e0d8d6196a4d19fb6a",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/yt-dlp/yt-dlp/commit/e578e265f7c6ca94a74b30e0d8d6196a4d19fb6a"
        },
        {
          "name": "https://github.com/yt-dlp/yt-dlp-nightly-builds/releases/tag/2026.06.09.230517",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/yt-dlp/yt-dlp-nightly-builds/releases/tag/2026.06.09.230517"
        },
        {
          "name": "https://github.com/yt-dlp/yt-dlp/releases/tag/2026.06.09",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/yt-dlp/yt-dlp/releases/tag/2026.06.09"
        }
      ],
      "source": {
        "advisory": "GHSA-c6mh-fpjc-4pr3",
        "discovery": "UNKNOWN"
      },
      "title": "yt-dlp: Dangerous file type creation via insufficient filename sanitization (Bypass of CVE-2024-38519)"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-50023",
    "datePublished": "2026-06-23T16:08:43.003Z",
    "dateReserved": "2026-06-02T22:46:02.579Z",
    "dateUpdated": "2026-06-25T13:45:44.576Z",
    "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

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.