pypdf: Manipulated XMP metadata entity declarations can exhaust RAM

Impact An attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing the XMP metadata. Patches This has been fixed in pypdf==6.10.0. Workarounds If you cannot upgrade yet, consider applying the changes from PR 3724...

Security Bulletin: IBM Watson Discovery Cartridge affected by vulnerability in pypdf-6.3.0-py3-none-any.whl

Summary IBM Watson Discovery Cartridge affected by vulnerability in pypdf-6.3.0-py3-none-any.whl Vulnerability Details CVEID:CVE-2025-66019 DESCRIPTION: pypdf is a free and open-source pure-python PDF library. Prior to version 6.4.0, an attacker who uses this vulnerability can craft a PDF which...

Security Bulletin: Investigation Assistant App for IBM QRadar SIEM is vulnerable to using components with known vulnerabilities

Summary The product includes vulnerable components e.g., framework libraries that could be identified and exploited with automated tools. Investigation Assistant App for IBM QRadar SIEM has addressed the applicable CVEs in an update. Vulnerability Details CVEID:CVE-2026-27628 DESCRIPTION: pypdf i...

Infinite Loop

pypdf is vulnerable to an Infinite Loop. The vulnerability is due to reading a file in non‑strict mode during dictionary recovery, where the DictionaryObject.readfromstream method can enter an infinite loop and an attacker can craft a PDF to trigger it...

SUSE CVE-2026-33699

pypdf is a free and open-source pure-python PDF library. Versions prior to 6.9.2 have a vulnerability in which an attacker can craft a PDF which leads to an infinite loop. This requires reading a file in non-strict mode. This has been fixed in pypdf 6.9.2. If users cannot upgrade yet, consider...

CVE-2026-33699

pypdf is a free and open-source pure-python PDF library. Versions prior to 6.9.2 have a vulnerability in which an attacker can craft a PDF which leads to an infinite loop. This requires reading a file in non-strict mode. This has been fixed in pypdf 6.9.2. If users cannot upgrade yet, consider...

UBUNTU-CVE-2026-33699

pypdf is a free and open-source pure-python PDF library. Versions prior to 6.9.2 have a vulnerability in which an attacker can craft a PDF which leads to an infinite loop. This requires reading a file in non-strict mode. This has been fixed in pypdf 6.9.2. If users cannot upgrade yet, consider...

pypdf 安全漏洞

pypdf is an open-source, free, and pure Python PDF library developed by py-pdf. It allows for splitting, merging, cropping, and converting pages of PDF files. Prior to version 6.9.2, pypdf had a security vulnerability that could be exploited by attackers to create PDF files that led to infinite...

CVE-2026-33699 pypdf: Possible infinite loop during recovery attempts in DictionaryObject.read_from_stream

pypdf is a free and open-source pure-python PDF library. Versions prior to 6.9.2 have a vulnerability in which an attacker can craft a PDF which leads to an infinite loop. This requires reading a file in non-strict mode. This has been fixed in pypdf 6.9.2. If users cannot upgrade yet, consider...

CVE-2026-33699

CVE-2026-33699 affects the pypdf library (Python), with versions prior to 6.9.2 vulnerable to an infinite loop when reading a PDF in non-strict mode. The root cause is within DictionaryObject.read_from_stream processing, leading to potential hang. A fix is available in pypdf 6.9.2, and multiple O...

CVE-2026-33699 pypdf: Possible infinite loop during recovery attempts in DictionaryObject.read_from_stream

pypdf is a free and open-source pure-python PDF library. Versions prior to 6.9.2 have a vulnerability in which an attacker can craft a PDF which leads to an infinite loop. This requires reading a file in non-strict mode. This has been fixed in pypdf 6.9.2. If users cannot upgrade yet, consider...

CVE-2026-33699 pypdf: Possible infinite loop during recovery attempts in DictionaryObject.read_from_stream

pypdf is a free and open-source pure-python PDF library. Versions prior to 6.9.2 have a vulnerability in which an attacker can craft a PDF which leads to an infinite loop. This requires reading a file in non-strict mode. This has been fixed in pypdf 6.9.2. If users cannot upgrade yet, consider...

01os (>=0.0.5 <=0.0.13), 3m (>=0.1.0 <=0.1.3) +2585 more potentially affected by CVE-2026-33699 via pypdf (>=3.10.0 <=6.9.1)

pypdf PYPI version =3.10.0, =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, =3.0.145 and more Source cves: CVE-2026-33699 Source advisory: OSV:GHSA-87MJ-5GGW-8QC3...

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 the readfromstream function of DictionaryObject. An attacker can cause the application to enter an infinite loop ...

01os (>=0.0.5 <=0.0.13), 3m (>=0.1.0 <=0.1.3) +2125 more potentially affected by CVE-2026-33699 via pypdf (>=6.0.0 <=6.9.1)

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-2026-33699 Source advisory: SNYK:PYTHON-PYPDF-15766701...

pypdf: Possible infinite loop during recovery attempts in DictionaryObject.read_from_stream

Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires reading a file in non-strict mode. Patches This has been fixed in pypdf==6.9.2. Workarounds If users cannot upgrade yet, consider applying the changes from PR 3693...

python311-pypdf-6.9.1-1.1 on GA media (moderate)

python311-pypdf-6.9.1-1.1 on GA media Announcement ID: openSUSE-SU-2026:10403-1 Rating: moderate Cross-References: CVE-2026-33123 Affected Products: openSUSE Tumbleweed An update that solves one vulnerability can now be installed. Description: These are all security issues fixed in the...

OPENSUSE-SU-2026:10403-1 python311-pypdf-6.9.1-1.1 on GA media

These are all security issues fixed in the python311-pypdf-6.9.1-1.1 package on the GA media of openSUSE Tumbleweed...

Denial Of Service

pypdf is vulnerable to Denial of Service. The vulnerability is due to inefficient decoding of array-based streams, where accessing an array-based stream with many entries leads to long runtimes and large memory usage, and attackers can exploit it by crafting a malicious PDF with a large array-bas...

CVE-2026-33123

A flaw was found in pypdf, a pure-python PDF library. An attacker can craft a malicious PDF file that, when processed, leads to excessive resource consumption, causing long runtimes and high memory usage. This can result in a Denial of Service DoS condition, making the application unresponsive or...