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OpenAdvisories
High · 8.7 CVE-2026-102993 EUVD-2026-90365GHSA-qv6h-rv94-w285PYSEC-2026-4158

pypdf: Possible large memory usage when retrieving Roman page labels

Published Sep 30, 2026 · Updated Oct 2, 2026 · Assigned by GitHub_M

Description

pypdf is a free and open-source pure-python PDF library. Prior to 6.17.0, a crafted PDF can provide unusually large Roman page-label values that cause pypdf/_page_labels.py to generate excessively large numeral strings when an application retrieves document page labels, consuming large amounts of memory and potentially making the application unavailable. This issue is fixed in version 6.17.0.

Affected products

VendorProductAffectedFixed
py-pdf pypdf < 6.17.0 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 pypdf 6.19.0-1 —
Debian 13 pypdf No fix yet —
Debian 12 pypdf No fix yet —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 pypdf No fix yet —
Ubuntu 26.04 LTS pypdf No fix yet —
Ubuntu 24.04 LTS pypdf +1 No fix yet —
Ubuntu 22.04 LTS pypdf2 No fix yet —
Ubuntu 20.04 LTS pypdf2 No fix yet —
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 18.04 LTS pypdf2 No fix yet —
Ubuntu Pro 16.04 LTS pypdf2 No fix yet —

Wolfi

ReleasePackageFixed inAdvisory
Wolfi rolling open-webui 0.11.4-r3 —

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI pypdf < 6.17.0 6.17.0 GHSA-qv6h-rv94-w285

References