CVE-2026-54531

pypdf is a free and open-source pure-python PDF library. Prior to 6.13.0, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires merging a file with outlines into a writer. This vulnerability is fixed in 6.13.0...

CVE-2026-54531 pypdf: Possible infinite loop when processing outlines/bookmarks in writer

pypdf is a free and open-source pure-python PDF library. Prior to 6.13.0, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires merging a file with outlines into a writer. This vulnerability is fixed in 6.13.0...

CVE-2026-54531

CVE-2026-54531 affects the pypdf library. Vulnerability: when merging a file containing outlines/bookmarks into a writer, an attacker can craft a PDF that leads to an infinite loop. Affected product: pypdf (Python library for PDF manipulation); vulnerable condition occurs prior to version 6.13.0....

Infinite loop

Overview pypdf is an A pure-python PDF library capable of splitting, merging, cropping, and transforming PDF files Affected versions of this package are vulnerable to Infinite loop via the processing outlines or bookmarks in writer. An attacker can cause the application to enter an infinite loop ...

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

Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires merging a file with outlines into a writer. Patches This has been fixed in pypdf==6.13.0. Workarounds If you cannot upgrade yet, consider applying the changes from PR 3830...

PT-2026-49743

Name of the Vulnerable Software and Affected Versions pypdf versions prior to 6.13.0 Description A flaw in the pure-python PDF library allows an attacker to craft a PDF that triggers an infinite loop. This occurs when merging a file containing outlines into a writer. Recommendations Update to...

Infinite Loop

pypdf is vulnerable to Infinite Loop. The vulnerability is due to an attacker being able to craft a PDF which leads to an infinite loop, where accessing the children of a TreeObject, for example as part of outlines, can be exploited by attackers...

SUSE 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...

Infinite Loop

pypdf is vulnerable to Infinite Loop. The vulnerability is due to an infinite loop vulnerability that is present in versions prior to 6.6.2, where an attacker can craft a PDF which leads to an infinite loop by accessing the outlines/bookmarks...

DEBIAN-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...

UBUNTU-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

CVE-2026-27024 affects the pypdf (pypdf2) library prior to 6.7.1. The vulnerability allows an attacker to craft a PDF that causes an infinite loop when processing TreeObject children (e.g., in outlines), resulting in a DoS. The issue is fixed in version 6.7.1; multiple connected advisories (openS...

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...

GHSA-996Q-PR4M-CVGQ 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...

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-2026-21301

Name of the Vulnerable Software and Affected Versions pypdf versions prior to 6.7.1 Description A crafted PDF file can cause an infinite loop when accessing the children of a TreeObject, such as during outline processing. This issue affects the pypdf library, a free and open-source pure-python PD...