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CVE-2026-113650

Full vulnerability record from the local CVENow database.

Description

ApostropheCMS is an open-source Node.js content management system. In sanitize-html 2.18.0, when an <iframe> is not allowed and disallowedTagsMode is 'discard' (the defaults), its raw-text content is re-sanitized by a recursive call to sanitizeHtml(text, options). The recursion has no bound and starts each nested call with a fresh state. This vulnerability is fixed in 2.18.1.

Severity
MEDIUM
CVSS score
5.3 (v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-10-20 17:17:35.807000
Last modified
2026-10-28 14:16:56.610000
View original CVE JSON
{
  "id": "CVE-2026-113650",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-20T17:17:35.807",
  "lastModified": "2026-10-28T14:16:56.610",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "ApostropheCMS is an open-source Node.js content management system. In sanitize-html 2.18.0, when an <iframe> is not allowed and disallowedTagsMode is 'discard' (the defaults), its raw-text content is re-sanitized by a recursive call to sanitizeHtml(text, options). The recursion has no bound and starts each nested call with a fresh state. This vulnerability is fixed in 2.18.1."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "apostrophecms",
          "product": "apostrophe",
          "versions": [
            {
              "version": "< 4.34.0",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "apostrophecms",
          "product": "sanitize-html",
          "versions": [
            {
              "version": ">= 2.18.0, < 2.18.1",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-28T14:02:31.342366Z",
          "id": "CVE-2026-113650",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-674"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/apostrophecms/apostrophe/commit/06e4b377f3c360f9e89c32dccd7e505ad5ddf498",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/apostrophecms/apostrophe/commit/40b989b1a9dd23d30029b8ce7668634265cfe5ea",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/apostrophecms/apostrophe/releases/tag/[email protected]",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-c9rx-x947-fp3h",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-c9rx-x947-fp3h",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}