PT-2026-56527

Name of the Vulnerable Software and Affected Versions pypdf versions prior to 6.14.0 Description An attacker can craft a PDF containing repeated malformed cross-reference streams. This causes the library to spend excessive runtimes attempting to recover broken cross-reference table entries, leadi...

EUVD-2026-32913

pypdf: Possible long runtimes for zero-only width values in cross-reference streamsuntimes for zero-only width values in cross-reference streams...

pypdf: Possible long runtimes for zero-only width values in cross-reference streamsuntimes for zero-only width values in cross-reference streams

Impact An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with /W 0 0 0 values and large /Size values. Patches This has been fixed in pypdf==6.12.0. Workarounds If developers are unable to upgrade their apps immediately, the...

GHSA-248M-82V9-Q6G6 pypdf: Possible long runtimes for zero-only width values in cross-reference streamsuntimes for zero-only width values in cross-reference streams

Impact An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with /W 0 0 0 values and large /Size values. Patches This has been fixed in pypdf==6.12.0. Workarounds If developers are unable to upgrade their apps immediately, the...

CVE-2026-48156

A flaw was found in pypdf, a free and open-source pure-python PDF library. A remote attacker could exploit this vulnerability by crafting a malicious PDF file. This file, containing specific cross-reference streams with /W 0 0 0 values and large /Size values, can lead to excessively long processi...

SUSE CVE-2026-48156

pypdf is a free and open-source pure-python PDF library. Prior to 6.12.0, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with /W 0 0 0 values and large /Size values. This vulnerability is fixed in 6.12.0...

Excessive Iteration

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 Excessive Iteration via the processing of cross-reference streams containing /W values set to 0 0 0 and large /Size values. An...

CVE-2026-48156

pypdf is a free and open-source pure-python PDF library. Prior to 6.12.0, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with /W 0 0 0 values and large /Size values. This vulnerability is fixed in 6.12.0...

DEBIAN-CVE-2026-48156

pypdf is a free and open-source pure-python PDF library. Prior to 6.12.0, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with /W 0 0 0 values and large /Size values. This vulnerability is fixed in 6.12.0...

CVE-2026-48156

pypdf is a free and open-source pure-python PDF library. Prior to 6.12.0, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with /W 0 0 0 values and large /Size values. This vulnerability is fixed in 6.12.0...

UBUNTU-CVE-2026-48156

pypdf is a free and open-source pure-python PDF library. Prior to 6.12.0, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with /W 0 0 0 values and large /Size values. This vulnerability is fixed in 6.12.0...

CVE-2026-48156 pypdf: Possible long runtimes for zero-only width values in cross-reference streams

pypdf is a free and open-source pure-python PDF library. Prior to 6.12.0, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with /W 0 0 0 values and large /Size values. This vulnerability is fixed in 6.12.0...

CVE-2026-48156 pypdf: Possible long runtimes for zero-only width values in cross-reference streams

pypdf is a free and open-source pure-python PDF library. Prior to 6.12.0, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with /W 0 0 0 values and large /Size values. This vulnerability is fixed in 6.12.0...

CVE-2026-48156

The CVE affects the Python PDF library pypdf (prior to 6.12.0). A crafted PDF leveraging cross-reference streams with /W [0 0 0] and large /Size can cause long runtimes. Fixed in 6.12.0; remediation is to upgrade to that version or later.

CVE-2026-48156

pypdf is a free and open-source pure-python PDF library. Prior to 6.12.0, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with /W 0 0 0 values and large /Size values. This vulnerability is fixed in 6.12.0...

CVE-2026-48156 pypdf: Possible long runtimes for zero-only width values in cross-reference streams

pypdf is a free and open-source pure-python PDF library. Prior to 6.12.0, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with /W 0 0 0 values and large /Size values. This vulnerability is fixed in 6.12.0...

CVE-2026-48156

pypdf is a free and open-source pure-python PDF library. Prior to 6.12.0, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with /W 0 0 0 values and large /Size values. This vulnerability is fixed in 6.12.0...

CVE-2026-48156: Excessive Iteration

pypdf is a free and open-source pure-python PDF library. Prior to 6.12.0, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with /W 0 0 0 values and large /Size values. This vulnerability is fixed in 6.12.0...

PT-2026-44393

Name of the Vulnerable Software and Affected Versions pypdf versions prior to 6.12.0 Description A flaw in the pure-python PDF library allows an attacker to craft a PDF file that causes long runtimes. This is achieved by using cross-reference streams with /W 0 0 0 values and large /Size values...

openSUSE 16 Security Update : python-PyPDF2 (openSUSE-SU-2026:20794-1)

The remote openSUSE 16 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20794-1 advisory. Changes in python-PyPDF2: - CVE-2026-41312: Fixed issue where crafed PDF can lead to resources exhaustion bsc1262675 - CVE-2026-41314: Fixed a...