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CVE-2026-91186 PNG decoder: a duplicate IHDR chunk after IDAT resizes the image after allocation, causing a heap out-of-bounds write

🗓️ 20 Oct 2026 14:47:52Reported by eclipseType 
cvelist
 cvelist
🔗 www.cve.org👁 5 Views

Duplicate IHDR chunk in PNG decoder causes heap out-of-bounds write.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-91186
20 Oct 202615:01
–circl
cve
CVE
CVE-2026-91186
20 Oct 202614:47
–cve
euvd
EUVD
EUVD-2026-105034
20 Oct 202614:47
–euvd
nvd
NVD
CVE-2026-91186
20 Oct 202615:17
–nvd
vulnrichment
Vulnrichment
CVE-2026-91186 PNG decoder: a duplicate IHDR chunk after IDAT resizes the image after allocation, causing a heap out-of-bounds write
20 Oct 202614:47
–vulnrichment
[
  {
    "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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