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CVE-2026-96395

Status: Awaiting AnalysisLow (3.6)—

The Affinity by Canva app for macOS before 3.3.1 (October 2026 release) did not perform adequate bounds checking when generating QuickLook thumbnails and previews of Affinity document files, leading to an out-of-bounds heap read. A threat actor could craft an Affinity document that, when displayed or previewed by a user in Finder, could disclose the contents of adjacent heap memory, including memory addresses, in the rendered thumbnail or preview image.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

Vector AV:L/UI:R indica ejecución en cliente (apertura de archivo preparado). CWE-125 es lectura fuera de límites; T1005 refleja la exfiltración de contenido de memoria adyacente en el thumbnail.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Application Isolation and SandboxingExploit ProtectionUpdate SoftwareData Loss Prevention

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Canva — AffinityAI

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2026-96395",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-96395",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-09T16:15:34.856085Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "61adb53e-e4b3-47f7-8a93-4717c9e77dc6",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 3.6,
          "attackVector": "LOCAL",
          "baseSeverity": "LOW",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.5,
        "exploitabilityScore": 1
      }
    ]
  },
  "affected": [
    {
      "source": "61adb53e-e4b3-47f7-8a93-4717c9e77dc6",
      "affectedData": [
        {
          "vendor": "canva",
          "product": "affinity",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "3.3.1",
              "versionType": "semver"
            }
          ],
          "platforms": [
            "MacOS"
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-10-09T13:17:12.910",
  "references": [
    {
      "url": "https://trust.canva.com?tcuUid=1998378a-9134-47e9-b761-7a49d5fd6bfb",
      "source": "61adb53e-e4b3-47f7-8a93-4717c9e77dc6"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "61adb53e-e4b3-47f7-8a93-4717c9e77dc6",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Affinity by Canva app for macOS before 3.3.1 (October 2026 release) did not perform adequate bounds checking when generating QuickLook thumbnails and previews of Affinity document files, leading to an out-of-bounds heap read. A threat actor could craft an Affinity document that, when displayed or previewed by a user in Finder, could disclose the contents of adjacent heap memory, including memory addresses, in the rendered thumbnail or preview image."
    }
  ],
  "lastModified": "2026-10-09T17:16:51.310",
  "sourceIdentifier": "61adb53e-e4b3-47f7-8a93-4717c9e77dc6"
}