MSRC_CVE-2026-34990

Vulnerability from csaf_microsoft - Published: 2026-04-02 00:00 - Updated: 2026-04-09 01:01
Summary
OpenPrinting CUPS: Local print admin token disclosure using temporary printers
Notes
Additional Resources: To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
Disclaimer: The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
CWE-287 - Improper Authentication
None Available There is no fix available for this vulnerability as of now
None Available There is no fix available for this vulnerability as of now

{
  "document": {
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2026-34990 OpenPrinting CUPS: Local print admin token disclosure using temporary printers - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-34990.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "OpenPrinting CUPS: Local print admin token disclosure using temporary printers",
    "tracking": {
      "current_release_date": "2026-04-09T01:01:45.000Z",
      "generator": {
        "date": "2026-04-09T07:14:16.761Z",
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                "product": {
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                  "product_id": "17084"
                }
              },
              {
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                }
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            "category": "product_name",
            "name": "Azure Linux"
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          {
            "branches": [
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              {
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      },
      {
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        },
        "product_reference": "1",
        "relates_to_product_reference": "17086"
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  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-34990",
      "cwe": {
        "id": "CWE-287",
        "name": "Improper Authentication"
      },
      "notes": [
        {
          "category": "general",
          "text": "GitHub_M",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
        "known_affected": [
          "17084-2",
          "17086-1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-34990 OpenPrinting CUPS: Local print admin token disclosure using temporary printers - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-34990.json"
        }
      ],
      "remediations": [
        {
          "category": "none_available",
          "date": "2026-04-05T01:01:45.000Z",
          "details": "There is no fix available for this vulnerability as of now",
          "product_ids": [
            "17084-2"
          ]
        },
        {
          "category": "none_available",
          "date": "2026-04-05T01:01:45.000Z",
          "details": "There is no fix available for this vulnerability as of now",
          "product_ids": [
            "17086-1"
          ]
        }
      ],
      "title": "OpenPrinting CUPS: Local print admin token disclosure using temporary printers"
    }
  ]
}


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Sightings

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  • 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.
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  • 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.


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