MSRC_CVE-2026-40179

Vulnerability from csaf_microsoft - Published: 2026-04-02 00:00 - Updated: 2026-04-17 01:02
Summary
Prometheus: Stored XSS via metric names and label values in web UI tooltips and metrics explorer
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.
CVE-2026-40179
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
None Available There is no fix available for this vulnerability as of now
References
To clipboard 

{
  "document": {
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    "csaf_version": "2.0",
    "distribution": {
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      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
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    "notes": [
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        "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"
      }
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      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
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    "references": [
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        "category": "self",
        "summary": "CVE-2026-40179 Prometheus: Stored XSS via metric names and label values in web UI tooltips and metrics explorer - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-40179.json"
      },
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        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "Prometheus: Stored XSS via metric names and label values in web UI tooltips and metrics explorer",
    "tracking": {
      "current_release_date": "2026-04-17T01:02:33.000Z",
      "generator": {
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  "vulnerabilities": [
    {
      "cve": "CVE-2026-40179",
      "cwe": {
        "id": "CWE-79",
        "name": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
      },
      "notes": [
        {
          "category": "general",
          "text": "GitHub_M",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
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        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-40179 Prometheus: Stored XSS via metric names and label values in web UI tooltips and metrics explorer - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-40179.json"
        }
      ],
      "remediations": [
        {
          "category": "none_available",
          "date": "2026-04-17T01:02:33.000Z",
          "details": "There is no fix available for this vulnerability as of now",
          "product_ids": [
            "17086-1"
          ]
        }
      ],
      "title": "Prometheus: Stored XSS via metric names and label values in web UI tooltips and metrics explorer"
    }
  ]
}


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