CVE-2026-27888

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.3, an attacker who uses this vulnerability can craft a PDF which leads to the RAM being exhausted. This requires accessing the xfa property of a reader or writer and the corresponding stream being compressed using /FlateDecode...

pypdf has a possible infinite loop when loading circular /Prev entries in cross-reference streams

Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires reading the file. Patches This has been fixed in pypdf==6.7.2. Workarounds If users cannot upgrade yet, consider applying the changes from PR 3655...

GHSA-2RW7-X74F-JG35 pypdf has a possible infinite loop when loading circular /Prev entries in cross-reference streams

Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires reading the file. Patches This has been fixed in pypdf==6.7.2. Workarounds If users cannot upgrade yet, consider applying the changes from PR 3655...

CVE-2026-27628

A flaw was found in pypdf. Processing a specially crafted PDF document, specifically with circular /Prev references in the cross-reference xref chain, can cause an infinite loop and a high consumption of CPU, resulting in a denial of service. Mitigation Mitigation for this issue is either not...

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 in reader.py, when loading circular /Prev entries in cross-reference streams. An attacker can cause the application ...

01os (>=0.0.5 <=0.0.13), 3m (>=0.1.0 <=0.1.3) +2094 more potentially affected by CVE-2026-27628 via pypdf (>=6.0.0 <=6.7.1)

pypdf PYPI version =6.0.0, =0.0.5, =0.1.0, =0.0.1, =0.2.0, =0.4.0, =0.3.0, =0.3.0, =0.1.1, =0.1.0, =0.0.2, =0.2.0, =1.2.27, =0.1.0, =0.6.0, =0.7.3 and more Source cves: CVE-2026-27628 Source advisory: SNYK:PYTHON-PYPDF-15340922...

CVE-2026-27628

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.2, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires reading the file. This has been fixed in pypdf 6.7.2. As a workaround, one may apply the patch manually...

DEBIAN-CVE-2026-27628

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.2, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires reading the file. This has been fixed in pypdf 6.7.2. As a workaround, one may apply the patch manually...

CVE-2026-27628

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.2, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires reading the file. This has been fixed in pypdf 6.7.2. As a workaround, one may apply the patch manually...

CVE-2026-27628

CVE-2026-27628 affects the Python library pypdf. Before version 6.7.2, crafted PDFs could trigger an infinite loop when loading circular /Prev entries in cross-reference streams (requires reading the file). The issue has been fixed in pypdf 6.7.2; a patch can be manually applied as a workaround. ...

CVE-2026-27628

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.2, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires reading the file. This has been fixed in pypdf 6.7.2. As a workaround, one may apply the patch manually...

CVE-2026-27628 pypdf has a possible infinite loop when loading circular /Prev entries in cross-reference streams

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.2, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires reading the file. This has been fixed in pypdf 6.7.2. As a workaround, one may apply the patch manually...

CVE-2026-27628

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.2, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires reading the file. This has been fixed in pypdf 6.7.2. As a workaround, one may apply the patch manually...

CVE-2026-27628 pypdf has a possible infinite loop when loading circular /Prev entries in cross-reference streams

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.2, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires reading the file. This has been fixed in pypdf 6.7.2. As a workaround, one may apply the patch manually...

CVE-2026-27628 pypdf has a possible infinite loop when loading circular /Prev entries in cross-reference streams

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.2, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires reading the file. This has been fixed in pypdf 6.7.2. As a workaround, one may apply the patch manually...

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 6.7.2, pypdf had a security vulnerability due to a flaw in handling specially crafted PDF files, which could lead to infinite...

PT-2026-22068

Name of the Vulnerable Software and Affected Versions pypdf versions prior to 6.7.3 Description A crafted PDF file can cause excessive RAM usage, potentially leading to exhaustion. This occurs when accessing the xfa property of a reader or writer, specifically when the corresponding stream is...

PT-2026-21845

Name of the Vulnerable Software and Affected Versions pypdf versions prior to 6.7.2 Description A crafted PDF file can cause an infinite loop when read, potentially impacting systems processing these files. The issue requires file reading to be triggered. Recommendations Update to version 6.7.2 o...

Linux Distros Unpatched Vulnerability : CVE-2026-27628

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 6.7.2, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop...

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...