pypdf: Manipulated RunLengthDecode streams can exhaust RAM

ImpactAn 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. PatchesThis has been fixed in pypdf==6.7.4. WorkaroundsIf you cannot upgrade yet, consider applying the changes from PR 3664...

PYSEC-2026-3017 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...

EUVD-2026-9070

pypdf: Manipulated RunLengthDecode streams can exhaust RAM...

DEBIAN-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...

UBUNTU-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

CVE-2026-28351 affects pypdf before 6.7.4. An attacker can craft a PDF using a RunLengthDecode content stream to cause excessive memory usage during parsing. Root cause: improper handling of RunLengthDecode in content streams. Impact: potential high memory consumption with low exploit complexity;...

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...

PT-2026-22400

Name of the Vulnerable Software and Affected Versions pypdf versions prior to 6.7.4 Description The pypdf library is susceptible to a resource exhaustion issue. An attacker can create a specially crafted PDF file that causes excessive memory usage when processed using the RunLengthDecode filter...

CVE-2026-28351: Uncontrolled Resource Consumption

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...