CVE-2023-40587 – Pyramid static view path traversal up one directory

https://notcve.org/view.php?id=CVE-2023-40587

Pyramid is an open source Python web framework. A path traversal vulnerability in Pyramid versions 2.0.0 and 2.0.1 impacts users of Python 3.11 that are using a Pyramid static view with a full filesystem path and have a `index.html` file that is located exactly one directory above the location of the static view's file system path. No further path traversal exists, and the only file that could be disclosed accidentally is `index.html`. Pyramid version 2.0.2 rejects any path that contains a null-byte out of caution. While valid in directory/file names, we would strongly consider it a mistake to use null-bytes in naming files/directories. • https://github.com/Pylons/pyramid/commit/347d7750da6f45c7436dd0c31468885cc9343c85 https://github.com/Pylons/pyramid/security/advisories/GHSA-j8g2-6fc7-q8f8 https://github.com/python/cpython/issues/106242 https://github.com/python/cpython/pull/106816 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LYSDTQ7NP5GHPQ7HBE47MBJQK7YEIYMF https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OQIPHQTM3XE5NIEXCTQFV2J2RK2YUSMT • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') •