CVE-2026-33812

{
  "id": "CVE-2026-33812",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-21T20:16:56.290",
  "lastModified": "2026-10-26T21:10:00.170",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Parsing a malicious font file can cause excessive memory allocation."
    },
    {
      "lang": "es",
      "value": "El análisis de un archivo de fuente malicioso puede causar una asignación excesiva de memoria."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "golang.org/x/image",
          "product": "golang.org/x/image/font/sfnt",
          "defaultStatus": "unaffected",
          "collectionURL": "https://pkg.go.dev",
          "packageName": "golang.org/x/image/font/sfnt",
          "programRoutines": [
            {
              "name": "source.view"
            },
            {
              "name": "Collection.Font"
            },
            {
              "name": "Font.GlyphAdvance"
            },
            {
              "name": "Font.GlyphBounds"
            },
            {
              "name": "Font.GlyphIndex"
            },
            {
              "name": "Font.GlyphName"
            },
            {
              "name": "Font.Kern"
            },
            {
              "name": "Font.LoadGlyph"
            },
            {
              "name": "Font.Name"
            },
            {
              "name": "Font.WriteSourceTo"
            },
            {
              "name": "Parse"
            },
            {
              "name": "ParseCollection"
            },
            {
              "name": "ParseCollectionReaderAt"
            },
            {
              "name": "ParseReaderAt"
            }
          ],
          "versions": [
            {
              "version": "0",
              "lessThan": "0.39.0",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 4.2
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-21T20:43:08.370574Z",
          "id": "CVE-2026-33812",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:golang:image:*:*:*:*:*:go:*:*",
              "versionEndExcluding": "0.39.0",
              "matchCriteriaId": "C0501D26-73D5-4E11-80EE-77576FB64671"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://go.dev/cl/761180",
      "source": "[email protected]",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://go.dev/issue/78382",
      "source": "[email protected]",
      "tags": [
        "Issue Tracking"
      ]
    },
    {
      "url": "https://pkg.go.dev/vuln/GO-2026-4962",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}