krummstab (>=0.2.0, <=1.2.1) potentially affected by CVE-2026-28804 via pypdf (3.1.0)

pypdf PYPI version 3.1.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - krummstab =0.2.0, =1.2.1 Source cves: CVE-2026-28804 Source advisory: OSV:GHSA-9M86-7PMV-2852...

GHSA-9M86-7PMV-2852 pypdf vulnerable to inefficient decoding of ASCIIHexDecode streams

Impact An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires accessing a stream which uses the /ASCIIHexDecode filter. Patches This has been fixed in pypdf==6.7.5. Workarounds If you cannot upgrade yet, consider applying the changes from PR 3666...

indico (>=3.2.6, <=3.2.9) potentially affected by CVE-2026-28804 via pypdf (3.12.1)

pypdf PYPI version 3.12.1 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - indico =3.2.6, =3.2.9 Source cves: CVE-2026-28804 Source advisory: OSV:GHSA-9M86-7PMV-2852...

cewler (1.2.0.post1), python-xdoc (>=0.1.0, <=0.1.1) potentially affected by CVE-2026-28804 via pypdf (4.0.1)

pypdf PYPI version 4.0.1 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - cewler 1.2.0.post1 - python-xdoc =0.1.0, =0.1.1 Source cves: CVE-2026-28804 Source advisory: OSV:GHSA-9M86-7PMV-2852...

bondai (>=0.1.0, <=0.3.0b2) potentially affected by CVE-2026-28804 via pypdf (3.15.1)

pypdf PYPI version 3.15.1 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - bondai =0.1.0, =0.3.0b2 Source cves: CVE-2026-28804 Source advisory: OSV:GHSA-9M86-7PMV-2852...

criscostack (1.0.0), neumai (>=0.0.9, <=0.0.36) +2 more potentially affected by CVE-2026-28804 via pypdf (3.9.1)

pypdf PYPI version 3.9.1 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - criscostack 1.0.0 - neumai =0.0.9, =0.0.17, =2023.6.0, =2024.4.0 Source cves: CVE-2026-28804 Source advisory: OSV:GHSA-9M86-7PMV-2852...

CVE-2026-28351

A flaw was found in pypdf, a free and open-source pure-python PDF library. An attacker can exploit this vulnerability by crafting a malicious PDF file that, when parsed, leads to excessive memory consumption. This occurs specifically when processing the content stream using the RunLengthDecode...

Linux Distros Unpatched Vulnerability : CVE-2026-28351

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 6.7.4, an attacker who uses this vulnerability can craft a PDF which leads to large...

OPENSUSE-SU-2026:10277-1 python311-pypdf-6.7.5-1.1 on GA media

These are all security issues fixed in the python311-pypdf-6.7.5-1.1 package on the GA media of openSUSE Tumbleweed...

PT-2026-23002

Name of the Vulnerable Software and Affected Versions pypdf versions prior to 6.7.5 Description A crafted PDF file can cause excessive processing time when accessing a stream that utilizes the /ASCIIHexDecode filter. This issue affects the pypdf library. Recommendations Update to version 6.7.5 or...

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...

Denial Of Service (DoS)

pypdf is vulnerable to Denial Of Service DoS. The vulnerability is due to manipulated FlateDecode XFA streams, where an attacker can craft a PDF that leads to RAM exhaustion by accessing the xfa property of a reader or writer and the corresponding stream being compressed using /FlateDecode...

Denial Of Service

pypdf is vulnerable to Denial of Service. The vulnerability is due to a malformed /FlateDecode stream, where the byte-by-byte decompression is used, and an attacker can craft a PDF which leads to long runtimes...

Infinite Loop

pypdf is vulnerable to Infinite Loop. The vulnerability is due to the library's handling of circular /Prev entries in cross-reference streams, where an attacker can craft a PDF that leads to an infinite loop when read, allowing for a denial of service attack...

gai-common (>=0.1.2, <=0.86.0), gai-lib (0.120.0) +4 more potentially affected by CVE-2026-28351 via pypdf (4.3.0)

pypdf PYPI version 4.3.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - gai-common =0.1.2, =1.1.3, =0.3.1, =5.3.8, =0.6.6, =0.7.0 Source cves: CVE-2026-28351 Source advisory: OSV:GHSA-F2V5-7JQ9-H8CG...

fair-llm (>=0.2.0, <=0.6.2), geo-importer (>=0.0.1b1, <=0.0.1b914) +4 more potentially affected by CVE-2026-28351 via pypdf (5.6.0)

pypdf PYPI version 5.6.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - fair-llm =0.2.0, =0.0.1b1, =30.0.5, =30.0.7 - textspitter 0.4.0b0 Source cves: CVE-2026-28351 Source advisory: OSV:GHSA-F2V5-7JQ9-H8CG...

GHSA-F2V5-7JQ9-H8CG pypdf: Manipulated RunLengthDecode streams can exhaust RAM

Impact An attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing the content stream using the RunLengthDecode filter. Patches This has been fixed in pypdf==6.7.4. Workarounds If you cannot upgrade yet, consider applying the changes from PR 36...

calibreweb (0.6.25), cewler (>=1.3.0, <=1.3.1) +8 more potentially affected by CVE-2026-28351 via pypdf (5.4.0)

pypdf PYPI version 5.4.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - calibreweb 0.6.25 - cewler =1.3.0, =1.1.2, =1.1.0, =1.2.0, =2025.3.0, =0.2.2, =28.3.2, =29.1.2 - ten8t 0.0.22 Source cves: CVE-2026-28351 Source...

label-sorter (>=0.2.0, <=0.3.0), sereto (0.3.5) potentially affected by CVE-2026-28351 via pypdf (5.8.0)

pypdf PYPI version 5.8.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - label-sorter =0.2.0, =0.3.0 - sereto 0.3.5 Source cves: CVE-2026-28351 Source advisory: OSV:GHSA-F2V5-7JQ9-H8CG...

centricube-langchain (>=1.2.3, <=1.3.0), centricube-pyautogen (>=0.3.2, <=0.3.3) +5 more potentially affected by CVE-2026-28351 via pypdf (5.6.1)

pypdf PYPI version 5.6.1 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - centricube-langchain =1.2.3, =0.3.2, =0.3.0, =0.1.0, =0.0.11, =0.0.3, =0.0.5 Source cves: CVE-2026-28351 Source advisory: OSV:GHSA-F2V5-7JQ9-H8CG...