cve-2026-24688

CVE-2026-24688 - pypdf - Circular Reference DoS Vulnerability This repo includes proof of concept code for triggering CVE-2026-24688. Summary Critical Denial of Service vulnerability in pypdf's outline bookmark parsing logic. When processing a PDF with circular outline references, the parser ente...

CVE-2026-24688

CVE-2026-24688 - pypdf - Circular Reference DoS Vulnerability This repo includes proof of concept code for triggering CVE-2026-24688. Summary Critical Denial of Service vulnerability in pypdf's outline bookmark parsing logic. When processing a PDF with circular outline references, the parser ente...

Security Bulletin: IBM Watson Discovery for IBM Cloud Pak for Data affected by vulnerability in pypdf

Summary IBM Watson Discovery for IBM Cloud Pak for Data affected by vulnerability in pypdf Vulnerability Details CVEID:CVE-2026-33123 DESCRIPTION: pypdf is a free and open-source pure-python PDF library. Versions prior to 6.9.1 allow an attacker to craft a malicious PDF which leads to long runtim...

CLSA-2026-1789369936 TuxCare security update for pypdf (8 CVEs)

TuxCare rebuilt pypdf to address 8 CVEs. Fixed in 5.9.0.post17+tuxcare...

python313-pypdf-6.16.2-3.1 on GA media (moderate)

python313-pypdf-6.16.2-3.1 on GA media Announcement ID: openSUSE-SU-2026:11726-1 Rating: moderate Cross-References: CVE-2026-84309 Affected Products: openSUSE Tumbleweed An update that solves one vulnerability can now be installed. Description: These are all security issues fixed in the...

pypdf: Possible infinite loop for TreeObject.insert_child

ImpactAn attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires a usually writing code path where TreeObject.insertchild is involved. PatchesThis has been fixed in pypdf==6.16.0. WorkaroundsIf you cannot upgrade yet, consider applying the changes from ...

pypdf: Possible long runtimes/large memory usage when retrieving outlines

ImpactAn attacker who uses this vulnerability can craft a PDF which leads to long runtimes and large memory consumption. This requires accessing the outlines of a document with either lots of entries or nested outlines with long re-used nesting paths. PatchesThis has been fixed in pypdf==6.16.1...

PYSEC-2026-3913 pypdf: Possible infinite loop for TreeObject.insert_child

Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires a usually writing code path where TreeObject.insertchild is involved. Patches This has been fixed in pypdf==6.16.0. Workarounds If you cannot upgrade yet, consider applying the changes fr...

pypdf: Possible long runtimes/large memory usage when extracting XForm objects

ImpactAn attacker who uses this vulnerability can craft a PDF which leads to long runtimes and large memory consumption. This requires extracting the text of a page with lots of XForm objects, where some of them might be re-used. PatchesThis has been fixed in pypdf==6.16.1. WorkaroundsIf you cann...

pypdf: Inefficient handling of non-whitespace inputs in read_until_whitespace

ImpactAn attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires a call to readuntilwhitespace with an input which does not have whitespace for a long time. PatchesThis has been fixed in pypdf==6.15.0. WorkaroundsIf you cannot upgrade yet, consider applyin...

PYSEC-2026-3912 pypdf: Inefficient handling of non-whitespace inputs in read_until_whitespace

Impact An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires a call to readuntilwhitespace with an input which does not have whitespace for a long time. Patches This has been fixed in pypdf==6.15.0. Workarounds If you cannot upgrade yet, consider...

PYSEC-2026-3911 pypdf: Possible long runtimes/large memory usage when extracting XForm objects

Impact An attacker who uses this vulnerability can craft a PDF which leads to long runtimes and large memory consumption. This requires extracting the text of a page with lots of XForm objects, where some of them might be re-used. Patches This has been fixed in pypdf==6.16.1. Workarounds If you...

PYSEC-2026-3910 pypdf: Possible long runtimes/large memory usage when retrieving outlines

Impact An attacker who uses this vulnerability can craft a PDF which leads to long runtimes and large memory consumption. This requires accessing the outlines of a document with either lots of entries or nested outlines with long re-used nesting paths. Patches This has been fixed in pypdf==6.16.1...

The vulnerabilities of the functions PageObject._extract_text() and PageObject.extract_xform_text() in the Python library for working with PDF files, PyPDF, allow a hacker to cause a service failure.

The vulnerability of the functions PageObject.extracttext and PageObject.extractxformtext in the Python library for working with PDF files, PyPDF, is related to excessive iteration. Exploiting this vulnerability can allow an attacker to cause a service failure...

The vulnerability of the TreeObject.insert_child() function in the Python library for working with PDF files, PyPDF, allows a hacker to cause a service failure.

The vulnerability of the TreeObject.insertchild function in the Python library for working with PDF files PyPDF is related to the execution of a loop with an unreachable exit condition. Exploiting this vulnerability could allow an attacker to cause a service failure...

The vulnerability of the _get_outline() function in the pypdf/_doc_common.py library of the Python library for working with PDF files, PyPDF, allows a attacker to cause a service failure.

The vulnerability of the getoutline function in the pypdf/doccommon.py library of the Python PDF handling library PyPDF is related to asymmetric resource consumption. Exploiting this vulnerability could allow an attacker to cause a service failure...

OPENSUSE-SU-2026:11726-1 python313-pypdf-6.16.2-3.1 on GA media

These are all security issues fixed in the python313-pypdf-6.16.2-3.1 package on the GA media of openSUSE Tumbleweed...

SUSE CVE-2026-84309

pypdf is a free and open-source pure-python PDF library. Prior to 6.16.0, an attacker can craft a PDF whose cyclic tree structure causes pypdf/generic/datastructures.py TreeObject.insertchild to follow /Next links indefinitely when a writing code path inserts a child, producing an infinite loop...

The vulnerability of the Python library for working with PDF files, PyPDF, is related to excessive iteration. This vulnerability allows attackers to trigger a service failure.

The vulnerability of the Python library for working with PDF files, PyPDF, is related to excessive iteration. Exploiting this vulnerability can allow a malicious actor to cause service failures...

The vulnerability of the Python library for working with PDF files, PyPDF, is related to errors in processing XML objects, which allows an attacker to cause a service failure.

The vulnerability of the Python library for working with PDF files, PyPDF, is related to errors in processing XML objects. Exploiting this vulnerability can allow a malicious actor to cause service failures...