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 ...

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...

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...

DEBIAN-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...

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...

CVE-2026-84309 pypdf: Possible infinite loop for TreeObject.insert_child

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...

CVE-2026-84309 pypdf: Possible infinite loop for TreeObject.insert_child

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...

EUVD-2026-69477

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...

PT-2026-84461

Name of the Vulnerable Software and Affected Versions pypdf versions prior to 6.16.0 Description An attacker can craft a PDF with a cyclic tree structure that triggers an infinite loop. This occurs when a writing code path utilizes the TreeObject.insert child function in pypdf/generic/ data...

PYSEC-2026-3013 pypdf has a possible infinite loop when processing TreeObject

Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires accessing the children of a TreeObject, for example as part of outlines. Patches This has been fixed in pypdf==6.7.1. Workarounds If you cannot upgrade yet, consider applying the changes...

PT-2026-59635

Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires accessing the children of a TreeObject, for example as part of outlines. Patches This has been fixed in pypdf==6.7.1. Workarounds If you cannot upgrade yet, consider applying the changes...

Linux Distros Unpatched Vulnerability : CVE-2026-27024

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - pypdf is a free and open-source pure-python PDF library. Prior to 6.7.1, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop...

CVE-2026-27024

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.1, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires accessing the children of a TreeObject, for example as part of outlines. This vulnerability is fixed in 6.7.1...

CVE-2026-27024

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.1, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires accessing the children of a TreeObject, for example as part of outlines. This vulnerability is fixed in 6.7.1...

CVE-2026-27024

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.1, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires accessing the children of a TreeObject, for example as part of outlines. This vulnerability is fixed in 6.7.1...

CVE-2026-27024

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.1, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires accessing the children of a TreeObject, for example as part of outlines. This vulnerability is fixed in 6.7.1...

CVE-2026-27024 pypdf has a possible infinite loop when processing TreeObject

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.1, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires accessing the children of a TreeObject, for example as part of outlines. This vulnerability is fixed in 6.7.1...

CVE-2026-27024 pypdf has a possible infinite loop when processing TreeObject

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.1, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires accessing the children of a TreeObject, for example as part of outlines. This vulnerability is fixed in 6.7.1...

CVE-2026-27024: Loop with Unreachable Exit Condition

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.1, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires accessing the children of a TreeObject, for example as part of outlines. This vulnerability is fixed in 6.7.1...

pypdf security vulnerability

pypdf is an open-source, free Python library for handling PDF files. It allows for splitting, merging, cropping, and converting pages within PDF files. Versions of pypdf prior to 6.7.1 contained security vulnerabilities; these vulnerabilities stemmed from accessing child items of the TreeObject...