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CVE-2026-26054 SumatraPDF: Heap out-of-bounds read in MOBI header parser.

🗓️ 24 Sep 2026 16:48:03Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 47 Views

Heap out-of-bounds read in SumatraPDF prior to 3.6 via malformed MOBI header file.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
bdu_fstec
BDU FSTEC
SumatraPDF Heap Buffer Overflow DoS
1 Oct 202600:00
–bdu_fstec
cve
CVE
CVE-2026-26054
24 Sep 202616:48
–cve
euvd
EUVD
EUVD-2026-86296
24 Sep 202616:48
–euvd
nvd
NVD
CVE-2026-26054
24 Sep 202617:17
–nvd
ptsecurity
Positive Technologies
PT-2026-98141
24 Sep 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-26054: Out-of-bounds Read
24 Sep 202600:00
–rapid7
vulnrichment
Vulnrichment
CVE-2026-26054 SumatraPDF: Heap out-of-bounds read in MOBI header parser.
24 Sep 202616:48
–vulnrichment
[
  {
    "vendor": "sumatrapdfreader",
    "product": "sumatrapdf",
    "versions": [
      {
        "version": "< 3.6",
        "status": "affected"
      }
    ]
  }
]

Data

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24 Sep 2026 16:48Current
CVSS 46.8
EPSS0.00135
SSVC
47