oxidize-pdf: NaN/inf bypass in colour content-stream emission causes PDF rejection (DoS)

Impact oxidize-pdf defines Color as a pub enum with public tuple-struct variants Rgbf64, f64, f64, Grayf64, and Cmykf64, f64, f64, f64. The constructors Color::rgb, Color::gray, and Color::cmyk clamp incoming components to 0.0, 1.0, but because the variants are pub, callers can construct values...

Improper Validation of Specified Quantity in Input

Overview Affected versions of this package are vulnerable to Improper Validation of Specified Quantity in Input via the emission of non-finite color values in the content stream. An attacker can cause PDF viewers to reject the content stream, affected page, or entire document by supplying special...

GHSA-88Q9-CMP2-C2VQ oxidize-pdf: NaN/inf bypass in colour content-stream emission causes PDF rejection (DoS)

Impact oxidize-pdf defines Color as a pub enum with public tuple-struct variants Rgbf64, f64, f64, Grayf64, and Cmykf64, f64, f64, f64. The constructors Color::rgb, Color::gray, and Color::cmyk clamp incoming components to 0.0, 1.0, but because the variants are pub, callers can construct values...

Denial Of Service (DoS)

pypdf is vulnerable to Denial Of Service. The vulnerability is due to parsing a PDF content stream with an inflated Length value, where the parser allocates memory based on the declared length without verifying the actual data size, and an attacker can craft a PDF with a large /Length field to...

EUVD-2026-10925

pypdf: manipulated stream length values can exhaust RAM...

EUVD-2026-10924

pypdf: manipulated stream length values can exhaust RAM...

CVE-2026-31826

pypdf is a free and open-source pure-python PDF library. Prior to 6.8.0, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing a content stream with a rather large /Length value, regardless of the actual data length inside the stream. Thi...

DEBIAN-CVE-2026-31826

pypdf is a free and open-source pure-python PDF library. Prior to 6.8.0, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing a content stream with a rather large /Length value, regardless of the actual data length inside the stream. Thi...

UBUNTU-CVE-2026-31826

pypdf is a free and open-source pure-python PDF library. Prior to 6.8.0, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing a content stream with a rather large /Length value, regardless of the actual data length inside the stream. Thi...

CVE-2026-31826

pypdf is a free and open-source pure-python PDF library. Prior to 6.8.0, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing a content stream with a rather large /Length value, regardless of the actual data length inside the stream. Thi...

CVE-2026-31826 pypdf: manipulated stream length values can exhaust RAM

pypdf is a free and open-source pure-python PDF library. Prior to 6.8.0, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing a content stream with a rather large /Length value, regardless of the actual data length inside the stream. Thi...

CVE-2026-31826

pypdf is a free and open-source pure-python PDF library. Prior to 6.8.0, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing a content stream with a rather large /Length value, regardless of the actual data length inside the stream. Thi...

CVE-2026-31826 pypdf: manipulated stream length values can exhaust RAM

pypdf is a free and open-source pure-python PDF library. Prior to 6.8.0, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing a content stream with a rather large /Length value, regardless of the actual data length inside the stream. Thi...

PT-2026-24480

Name of the Vulnerable Software and Affected Versions pypdf versions prior to 6.8.0 Description pypdf is a free and open-source pure-python PDF library. A crafted PDF file can cause excessive memory usage when parsed, specifically when processing a content stream with a large /Length value,...

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...

EUVD-2026-9070

pypdf: Manipulated RunLengthDecode streams can exhaust RAM...

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...

SUSE CVE-2025-66019

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 leads to a memory usage of up to 1 GB per stream. This requires parsing the content stream of a page using the LZWDecode filter. This issue has been patch...

CVE-2025-66019

CVE-2025-66019 affects the Python PDF library pypdf up to version 6.3.x. Reporter data from multiple sources state that parsing a page content stream using the LZWDecode filter can cause memory usage to balloon to as much as 1 GB per stream, leading to potential denial of service on affected pars...

Improper Handling of Highly Compressed Data (Data Amplification)

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 Improper Handling of Highly Compressed Data Data Amplification via the LZWDecode process. An attacker can exhaust system memory by...