CVE-2026-59936
HIGHpypdf: Possible infinite loop for not terminated inline images
Title source: cnaDescription
pypdf is a free and open-source pure-python PDF library. Prior to 6.14.1, an attacker can craft a PDF with a page content stream containing a not terminated inline image, causing an infinite loop during inline image end marker detection such as when extracting page text. This issue is fixed in version 6.14.1.
References (4)
Core 4
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/py-pdf/pypdf/security/advisories/GHSA-5xf7-4p34-54qr
X_Refsource_Misc x_refsource_misc
https://github.com/py-pdf/pypdf/pull/3891
X_Refsource_Misc x_refsource_misc
https://github.com/py-pdf/pypdf/commit/ec3b14596186c40caca7cf8ab9b2155203e01b5b
X_Refsource_Misc x_refsource_misc
https://github.com/py-pdf/pypdf/releases/tag/6.14.1
Scores
CVSS v3
7.5
EPSS
0.0034
EPSS Percentile
26.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-400
Status
published
Products (3)
py-pdf/pypdf
< 6.14.1
pypdf_project/pypdf
< 6.14.1
pypi/pypdf
0 - 6.14.1PyPI
Published
Jul 08, 2026
Tracked Since
Jul 09, 2026