https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Mon, 28 Sep 2026 18:32:08 +0000 https://vulnerability.circl.lu/vuln/cve-2026-27026 <p><strong>Affected:</strong> py-pdf pypdf</p> <p>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. This requires a malformed /FlateDecode stream, where the byte-by-byte decompression is used. This vulnerability is fixed in 6.7.1.</p> <p><strong>Affected:</strong> py-pdf pypdf</p> <p>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. This requires a malformed /FlateDecode stream, where the byte-by-byte decompression is used. This vulnerability is fixed in 6.7.1.</p> https://vulnerability.circl.lu/vuln/cve-2026-27026 https://vulnerability.circl.lu/vuln/ghsa-9mvc-8737-8j8h <p><strong>Affected:</strong> PyPI: pypdf</p> <p>### Impact</p> <p>An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires a malformed `/FlateDecode` stream, where the byte-by-byte decompression is used.</p> <p>### Patches</p> <p>This has been fixed in [pypdf==6.7.1](https://github.com/py-pdf/pypdf/releases/tag/6.7.1).</p> <p>### Workarounds</p> <p>If you cannot upgrade yet, consider applying the changes from PR [#3644](https://github.com/py-pdf/pypdf/pull/3644).</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 long runtimes. This requires a malformed `/FlateDecode` stream, where the byte-by-byte decompression is used.</p> <p>### Patches</p> <p>This has been fixed in [pypdf==6.7.1](https://github.com/py-pdf/pypdf/releases/tag/6.7.1).</p> <p>### Workarounds</p> <p>If you cannot upgrade yet, consider applying the changes from PR [#3644](https://github.com/py-pdf/pypdf/pull/3644).</p> https://vulnerability.circl.lu/vuln/ghsa-9mvc-8737-8j8h https://vulnerability.circl.lu/vuln/pysec-2026-3015 <p><strong>Affected:</strong> PyPI: pypdf</p> <p>### Impact</p> <p>An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires a malformed `/FlateDecode` stream, where the byte-by-byte decompression is used.</p> <p>### Patches</p> <p>This has been fixed in [pypdf==6.7.1](https://github.com/py-pdf/pypdf/releases/tag/6.7.1).</p> <p>### Workarounds</p> <p>If you cannot upgrade yet, consider applying the changes from PR [#3644](https://github.com/py-pdf/pypdf/pull/3644).</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 long runtimes. This requires a malformed `/FlateDecode` stream, where the byte-by-byte decompression is used.</p> <p>### Patches</p> <p>This has been fixed in [pypdf==6.7.1](https://github.com/py-pdf/pypdf/releases/tag/6.7.1).</p> <p>### Workarounds</p> <p>If you cannot upgrade yet, consider applying the changes from PR [#3644](https://github.com/py-pdf/pypdf/pull/3644).</p> https://vulnerability.circl.lu/vuln/pysec-2026-3015