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CVE-2026-91189 GUIX binary resource loader: unvalidated glyph range causes an integer underflow and a heap out-of-bounds write when loading an untrusted font or theme

🗓️ 20 Oct 2026 14:53:44Reported by eclipseType 
cvelist
 cvelist
🔗 www.cve.org👁 7 Views

Unvalidated glyph range in GUIX binary resource loader causes heap out-of-bounds write.

Related
Affected
Refs
[
  {
    "vendor": "Eclipse Foundation",
    "product": "Eclipse ThreadX - GUIX",
    "packageName": "GUIX",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThanOrEqual": "6.5.1.202602a",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "6.5.2.202603"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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