PT-2026-59646

Impact An attacker who uses this vulnerability can craft a PDF which leads to long runtimes and large memory consumption. This requires parsing the /ToUnicode entry of a font with unusually large values, for example during text extraction. Patches This has been fixed in pypdf==6.7.1. Workarounds ...

SUSE CVE-2026-27025

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.1, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes and large memory consumption. This requires parsing the /ToUnicode entry of a font with unusually large values, for example during text...

pypdf has possible long runtimes/large memory usage for large /ToUnicode streams

Impact An attacker who uses this vulnerability can craft a PDF which leads to long runtimes and large memory consumption. This requires parsing the /ToUnicode entry of a font with unusually large values, for example during text extraction. Patches This has been fixed in pypdf==6.7.1. Workarounds ...

Uploading large fonts for PDF export fails with XSRF error

When uploading souizhs.ttf font that we use due to its comprehensive UTF8 support, I'm getting XSRF validation error: quote Your request could not be processed because a required security token was not present in the request. You may need to re-submit the form or reload the page. quote I tried...

X Window 4.04.14.2 - System Oversized Font Denial of Service

X Window 4.04.14.2 - System Oversized Font Denial of Service source: https://www.securityfocus.com/bid/4966/info X Window System behaves unpredictably when handling an overly large font size. If an attacker can pass an overly large font size to X Window System, it is possible to cause a denial of...