https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Fri, 02 Oct 2026 15:38:18 +0000 https://vulnerability.circl.lu/vuln/fkie_cve-2026-102996 <p>pypdf is a free and open-source pure-python PDF library. Prior to 6.18.1, a crafted PDF can provide a TrueType or Type1 simple font with an unusually large /Widths array, causing pypdf/_font.py Font._collect_tt_t1_character_widths to process entries beyond the 256 character codes meaningful for a simple font and consume excessive memory during operations such as text extraction. This issue is fixed in version 6.18.1.</p> <p>pypdf is a free and open-source pure-python PDF library. Prior to 6.18.1, a crafted PDF can provide a TrueType or Type1 simple font with an unusually large /Widths array, causing pypdf/_font.py Font._collect_tt_t1_character_widths to process entries beyond the 256 character codes meaningful for a simple font and consume excessive memory during operations such as text extraction. This issue is fixed in version 6.18.1.</p> https://vulnerability.circl.lu/vuln/fkie_cve-2026-102996 https://vulnerability.circl.lu/vuln/ghsa-g9cg-prrw-2r8q <p><strong>Affected:</strong> PyPI: pypdf</p> <p>### Impact</p> <p>An attacker who uses this vulnerability can craft a PDF which leads to large memory consumption. This requires parsing the `/Widths` entry of a TrueType or Type1 fonts with unusually large values, for example during text extraction.</p> <p>### Patches</p> <p>This has been fixed in [pypdf==6.18.1](https://github.com/py-pdf/pypdf/releases/tag/6.18.1).</p> <p>### Workarounds</p> <p>If you cannot upgrade yet, consider applying the changes from PR [#4072](https://github.com/py-pdf/pypdf/pull/4072).</p> <p><strong>Affected:</strong> PyPI: pypdf</p> <p>### Impact</p> <p>An attacker who uses this vulnerability can craft a PDF which leads to large memory consumption. This requires parsing the `/Widths` entry of a TrueType or Type1 fonts with unusually large values, for example during text extraction.</p> <p>### Patches</p> <p>This has been fixed in [pypdf==6.18.1](https://github.com/py-pdf/pypdf/releases/tag/6.18.1).</p> <p>### Workarounds</p> <p>If you cannot upgrade yet, consider applying the changes from PR [#4072](https://github.com/py-pdf/pypdf/pull/4072).</p> https://vulnerability.circl.lu/vuln/ghsa-g9cg-prrw-2r8q https://vulnerability.circl.lu/vuln/pysec-2026-4155 <p><strong>Affected:</strong> PyPI: pypdf</p> <p>### Impact</p> <p>An attacker who uses this vulnerability can craft a PDF which leads to large memory consumption. This requires parsing the `/Widths` entry of a TrueType or Type1 fonts with unusually large values, for example during text extraction.</p> <p>### Patches</p> <p>This has been fixed in [pypdf==6.18.1](https://github.com/py-pdf/pypdf/releases/tag/6.18.1).</p> <p>### Workarounds</p> <p>If you cannot upgrade yet, consider applying the changes from PR [#4072](https://github.com/py-pdf/pypdf/pull/4072).</p> <p><strong>Affected:</strong> PyPI: pypdf</p> <p>### Impact</p> <p>An attacker who uses this vulnerability can craft a PDF which leads to large memory consumption. This requires parsing the `/Widths` entry of a TrueType or Type1 fonts with unusually large values, for example during text extraction.</p> <p>### Patches</p> <p>This has been fixed in [pypdf==6.18.1](https://github.com/py-pdf/pypdf/releases/tag/6.18.1).</p> <p>### Workarounds</p> <p>If you cannot upgrade yet, consider applying the changes from PR [#4072](https://github.com/py-pdf/pypdf/pull/4072).</p> https://vulnerability.circl.lu/vuln/pysec-2026-4155