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pypdf: Possible infinite loop when processing outlines/bookmarks in writer

🗓️ 16 Jun 2026 14:05:57Reported by GitHub Advisory DatabaseType 
github
 github🔗 github.com👁 40 Views

Pypdf vulnerability causes an infinite loop when processing outlines in a writer; upgrade to 6.13.0.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB		CVE-2026-54531
22 Jun 202620:26
–attackerkb
cgr
Chainguard		CVE-2026-54531 vulnerabilities
26 Jun 202620:23
–cgr
cve
CVE		CVE-2026-54531
22 Jun 202620:26
–cve
cvelist
Cvelist		CVE-2026-54531 pypdf: Possible infinite loop when processing outlines/bookmarks in writer
22 Jun 202620:26
–cvelist
debiancve
Debian CVE		CVE-2026-54531
22 Jun 202620:26
–debiancve
euvd
EUVD		EUVD-2026-38355
22 Jun 202620:26
–euvd
nvd
NVD		CVE-2026-54531
22 Jun 202621:16
–nvd
osv
OSV		CGA-76WW-CR8V-FFWW
26 Jun 202615:00
–osv
osv
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
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
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pypdf_projectpypdfRange<6.13.0pip

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16 Jun 2026 14:05Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.15.5
CVSS 46.9
EPSS0.00121
SSVC
CWE-835
pypdfinfinite loopoutlinesbookmarkswriterupgrade 6.13.0
40