CVE-2026-27026

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 long runtimes. This requires a malformed /FlateDecode stream, where the byte-by-byte decompression is used. This vulnerability is fixed in 6.7.1...

pypdf 安全漏洞

pypdf is an open-source, free Python library for handling PDF files. It allows for splitting, merging, cropping, and converting pages within PDF files. Prior to version 6.7.1, pypdf had a security vulnerability that stemmed from processing format-corrupted /FlateDecode streams, which could lead t...

PT-2026-20909

Name of the Vulnerable Software and Affected Versions pypdf versions prior to 6.7.1 Description pypdf is a free and open-source pure-python PDF library. A crafted PDF file can cause excessive processing time due to a malformed /FlateDecode stream and byte-by-byte decompression. Recommendations...

EUVD-2025-24648

Malicious code in bioql PyPI...

Linux Distros Unpatched Vulnerability : CVE-2025-55197

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 6.0.0, an attacker can craft a PDF which leads to the RAM being exhausted. This requir...

SUSE CVE-2025-55197

pypdf is a free and open-source pure-python PDF library. Prior to version 6.0.0, an attacker can craft a PDF which leads to the RAM being exhausted. This requires just reading the file if a series of FlateDecode filters is used on a malicious cross-reference stream. Other content streams are...

CVE-2025-55197

A flaw was found in pypdf. Processing maliciously crafted PDF files utilizing a sequence of FlateDecode filters can exhaust available RAM. An attacker can trigger this condition by simply reading the malicious PDF file. This results in a resource exhaustion condition, leading to an application...

Allocation of Resources Without Limits or Throttling

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 Allocation of Resources Without Limits or Throttling due to the decompressed size for the FlateDecode filter. An attacker can caus...

CVE-2025-55197

pypdf is a free and open-source pure-python PDF library. Prior to version 6.0.0, an attacker can craft a PDF which leads to the RAM being exhausted. This requires just reading the file if a series of FlateDecode filters is used on a malicious cross-reference stream. Other content streams are...

CVE-2025-55197 pypdf's Manipulated FlateDecode streams can exhaust RAM

pypdf is a free and open-source pure-python PDF library. Prior to version 6.0.0, an attacker can craft a PDF which leads to the RAM being exhausted. This requires just reading the file if a series of FlateDecode filters is used on a malicious cross-reference stream. Other content streams are...

CVE-2025-55197

The CVE-2025-55197 issue affects pypdf prior to version 6.0.0, where a crafted PDF using a sequence of FlateDecode filters in a malicious cross-reference stream can exhaust RAM (DoS). Other content streams may be affected on explicit access. The vulnerability has been fixed in 6.0.0. A workaround...

security flaw

Xpdf, as used in products such as gpdf, kpdf, pdftohtml, poppler, teTeX, CUPS, libextractor, and others, allows attackers to cause a denial of service crash via a crafted FlateDecode stream that triggers a null dereference...