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...

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...

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...

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 in the RunLengthDecode filter, implemented in filters.py. An attacker can cau...

CVE-2026-28351

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 memory usage. This requires parsing the content stream using the RunLengthDecode filter. This has been fixed in pypdf 6.7.4. As a workaroun...

CVE-2026-28351

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 memory usage. This requires parsing the content stream using the RunLengthDecode filter. This has been fixed in pypdf 6.7.4. As a workaroun...

CVE-2026-28351 Manipulated RunLengthDecode streams can exhaust RAM

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 memory usage. This requires parsing the content stream using the RunLengthDecode filter. This has been fixed in pypdf 6.7.4. As a workaroun...

CVE-2026-28351 Manipulated RunLengthDecode streams can exhaust RAM

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 memory usage. This requires parsing the content stream using the RunLengthDecode filter. This has been fixed in pypdf 6.7.4. As a workaroun...

CVE-2026-28351

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 memory usage. This requires parsing the content stream using the RunLengthDecode filter. This has been fixed in pypdf 6.7.4. As a workaroun...

CVE-2026-27809

psd-tools is a Python package for working with Adobe Photoshop PSD files. Prior to version 1.12.2, when a PSD file contains malformed RLE-compressed image data e.g. a literal run that extends past the expected row size, decoderle raises ValueError which propagated all the way to the user, crashin...

EUVD-2026-8791

pypdf: Manipulated FlateDecode XFA streams can exhaust RAM...

CVE-2026-27888

A flaw was found in pypdf. A remote attacker can exploit this vulnerability by crafting a malicious PDF document. When a user processes this specially crafted PDF, it can lead to excessive memory consumption, resulting in a Denial of Service DoS for the affected system. This issue specifically...

[SECURITY] [DLA 4493-1] libstb security update

------------------------------------------------------------------------- Debian LTS Advisory DLA-4493-1 [email protected] https://www.debian.org/lts/security/ Abhijith PA February 26, 2026 https://wiki.debian.org/LTS -...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

DEBIAN-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...

UBUNTU-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...

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...

CVE-2026-27888

CVE-2026-27888 affects the pypdf library (Python) prior to 6.7.3. The issue arises when an attacker crafts a PDF that causes RAM exhaustion by accessing the reader/writer’s xfa property and a compressed stream using FlateDecode, leading to high availability impact. The vulnerability does not disc...

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...

PYSEC-2026-2262

psd-tools is a Python package for working with Adobe Photoshop PSD files. Prior to version 1.12.2, when a PSD file contains malformed RLE-compressed image data e.g. a literal run that extends past the expected row size, decoderle raises ValueError which propagated all the way to the user, crashin...