CVE-2026-22691

A flaw was found in pypdf. A remote attacker can exploit this vulnerability by crafting a malicious PDF file with malformed startxref entries and excessive whitespace characters. This can cause excessively long processing times when rebuilding the cross-reference table in non-strict reading mode,...

UBUNTU-CVE-2026-22691

pypdf is a free and open-source pure-python PDF library. Prior to version 6.6.0, pypdf has possible long runtimes for malformed startxref. An attacker who uses this vulnerability can craft a PDF which leads to possibly long runtimes for invalid startxref entries. When rebuilding the cross-referen...

EUVD-2026-1877

pypdf is a free and open-source pure-python PDF library. Prior to version 6.6.0, pypdf has possible long runtimes for malformed startxref. An attacker who uses this vulnerability can craft a PDF which leads to possibly long runtimes for invalid startxref entries. When rebuilding the cross-referen...

CVE-2026-22691 pypdf has possible long runtimes for malformed startxref

pypdf is a free and open-source pure-python PDF library. Prior to version 6.6.0, pypdf has possible long runtimes for malformed startxref. An attacker who uses this vulnerability can craft a PDF which leads to possibly long runtimes for invalid startxref entries. When rebuilding the cross-referen...

CVE-2026-22691 pypdf has possible long runtimes for malformed startxref

pypdf is a free and open-source pure-python PDF library. Prior to version 6.6.0, pypdf has possible long runtimes for malformed startxref. An attacker who uses this vulnerability can craft a PDF which leads to possibly long runtimes for invalid startxref entries. When rebuilding the cross-referen...

pypdf 安全漏洞

pypdf is py-pdf open source a free open source pure python PDF library . Able to split , merge , crop and convert pages of PDF files . pypdf versions prior to 6.6.0 has a security vulnerability , the vulnerability stems from the processing of incorrectly formatted startxref entries may generate a...

Linux Distros Unpatched Vulnerability : CVE-2026-22691

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 version 6.6.0, pypdf has possible long runtimes for malformed startxref. An attacker who uses...

GHSA-4F6G-68PF-7VHV pypdf has possible long runtimes for malformed startxref

Impact An attacker who exploits this vulnerability can craft a PDF which leads to possibly long runtimes for invalid startxref entries. When rebuilding the cross-reference table, PDF files with lots of whitespace characters become problematic. Only the non-strict reading mode is affected. Patches...

EUVD-2026-1691

pypdf has possible long runtimes for malformed startxref...

PT-2026-2245

Name of the Vulnerable Software and Affected Versions pypdf versions prior to 6.6.0 Description pypdf is a pure-python PDF library. Versions prior to 6.6.0 are susceptible to long runtimes when processing malformed startxref entries within PDF files. An attacker can create a specially crafted PDF...