CVE-2026-119343

Full vulnerability record from the local CVENow database.

Description

Stirling-PDF is a locally hosted web application that facilitates various operations on PDF files. Prior to 3.0.0, POST /api/v1/ai/tools/create-pdf-from-html-agent accepts attacker-controlled htmlContent and passes it to WeasyPrint without CustomHtmlSanitizer, unlike the sanitized /api/v1/convert/html/pdf control path. HTTP and HTTPS resource references can make server-side requests to internal or cloud-metadata destinations, while file references can embed local content readable by the Stirling-PDF process into the generated PDF. The endpoint is reachable without credentials when security.enableLogin is false, and the flaw is distinct from earlier Stirling-PDF WeasyPrint vulnerabilities in older conversion paths. This issue is fixed in version 3.0.0.

Severity

MEDIUM

CVSS score

6.8 (v3.1)

Vulnerability status

Deferred

Source identifier

[email protected]

Published

2026-10-30 21:16:53.417000

Last modified

2026-10-30 21:16:53.607000

View original CVE JSON

{
  "id": "CVE-2026-119343",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-30T21:16:53.417",
  "lastModified": "2026-10-30T21:16:53.607",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Stirling-PDF is a locally hosted web application that facilitates various operations on PDF files. Prior to 3.0.0, POST /api/v1/ai/tools/create-pdf-from-html-agent accepts attacker-controlled htmlContent and passes it to WeasyPrint without CustomHtmlSanitizer, unlike the sanitized /api/v1/convert/html/pdf control path. HTTP and HTTPS resource references can make server-side requests to internal or cloud-metadata destinations, while file references can embed local content readable by the Stirling-PDF process into the generated PDF. The endpoint is reachable without credentials when security.enableLogin is false, and the flaw is distinct from earlier Stirling-PDF WeasyPrint vulnerabilities in older conversion paths. This issue is fixed in version 3.0.0."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Stirling-Tools",
          "product": "Stirling-PDF",
          "versions": [
            {
              "version": "< 3.0.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N",
          "baseScore": 6.8,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 4.0
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-73"
        },
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/Stirling-Tools/Stirling-PDF/commit/0570c4c4d9e7bf4786a02ab770ef75f116ac3719",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/Stirling-Tools/Stirling-PDF/pull/7018",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/Stirling-Tools/Stirling-PDF/releases/tag/v3.0.0",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/Stirling-Tools/Stirling-PDF/security/advisories/GHSA-3x7x-943g-269w",
      "source": "[email protected]"
    }
  ]
}