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pypdf: Possible large memory usage for wrong image dimensions

🗓️ 23 Jul 2026 15:06:58Reported by GitHub Advisory DatabaseType 
github
 github🔗 github.com👁 7 Views

Attackers can craft a PDF with large image dimensions to cause memory usage; fixed in pypdf 6.14.0.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB		CVE-2026-59938
8 Jul 202617:24
–attackerkb
Circl		CVE-2026-59938
8 Jul 202619:45
–circl
CVE		CVE-2026-59938
8 Jul 202617:24
–cve
Cvelist		CVE-2026-59938 pypdf: Possible large memory usage for wrong image dimensions
8 Jul 202617:24
–cvelist
Debian CVE		CVE-2026-59938
8 Jul 202617:24
–debiancve
EUVD		EUVD-2026-42343
23 Jul 202615:06
–euvd
NVD		CVE-2026-59938
8 Jul 202618:16
–nvd
OSV		CLEANSTART-2026-EH47852 Security fixes for CVE-2026-34180, CVE-2026-48155, CVE-2026-48156, CVE-2026-48522, CVE-2026-48523, CVE-2026-48524, CVE-2026-48525, CVE-2026-48526, CVE-2026-48710, CVE-2026-48735, CVE-2026-48817, CVE-2026-48818, CVE-2026-49460, CVE-2026-49461, CVE-2026-53537, CVE-2026-53538, CVE-2026-53539, CVE-2026-53540, CVE-2026-54282, CVE-2026-54283, CVE-2026-54530, CVE-2026-54531, CVE-2026-54651, CVE-2026-57204, CVE-2026-59935, CVE-2026-59936, CVE-2026-59937, CVE-2026-59938, ghsa-537c-gmf6-5ccf, ghsa-jm82-fx9c-mx94 applied in versions: 1.85.1-r0, 1.89.5-r0, 1.90.2-r0
21 Jul 202607:54
–osv
OSV		CLEANSTART-2026-GN02455 Security fixes for CVE-2026-34180, CVE-2026-48155, CVE-2026-48156, CVE-2026-48522, CVE-2026-48523, CVE-2026-48524, CVE-2026-48525, CVE-2026-48526, CVE-2026-48710, CVE-2026-48735, CVE-2026-48817, CVE-2026-48818, CVE-2026-49460, CVE-2026-49461, CVE-2026-53537, CVE-2026-53538, CVE-2026-53539, CVE-2026-53540, CVE-2026-54282, CVE-2026-54283, CVE-2026-54530, CVE-2026-54531, CVE-2026-54651, CVE-2026-57204, CVE-2026-59935, CVE-2026-59936, CVE-2026-59937, CVE-2026-59938, ghsa-537c-gmf6-5ccf, ghsa-jm82-fx9c-mx94 applied in versions: 1.85.1-r0, 1.88.5-r0, 1.90.2-r0
21 Jul 202607:54
–osv
OSV		CVE-2026-59938 pypdf: Possible large memory usage for wrong image dimensions
8 Jul 202617:24
–osv
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pypdf_projectpypdfRange<6.14.0pip

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23 Jul 2026 15:06Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.15.3
CVSS 46.9
EPSS0.00303
SSVC
CWE-789
memory usageimage dimensionspypdfvulnerabilitypatch 6.14.0upgrade recommended
7