CVE-2023-40587

python-pyramid: Pyramid is an open source Python web framework

CVE-2023-40587 is fixed in python-pyramid on 1 platform, first by DEBIAN-CVE-2023-40587, released August 25, 2023. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.3
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0075
55th percentile

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. Secondly, Python 3.11, and 3.12 has fixed the underlying issue in `os.path.normpath` to no longer truncate on the first `0x00` found, returning the behavior to pre-3.11 Python, un an as of yet unreleased version. Fixes will be available in:Python 3.12.0rc2 and 3.11.5. Some workarounds are available. Use a version of Python 3 that is not affected, downgrade to Python 3.10 series temporarily, or wait until Python 3.11.5 is released and upgrade to the latest version of Python 3.11 series.

Where it's fixed

ProductFixed inFixReleased
Linux
python-pyramid · Debian 12.15 (bookworm) 2.0+dfsg-2+deb12u1 DEBIAN-CVE-2023-40587 Aug 25, 2023
python-pyramid · Debian 13.5 (trixie) 2.0.2+dfsg-1 DEBIAN-CVE-2023-40587 Aug 25, 2023
python-pyramid · Debian 14 2.0.2+dfsg-1 DEBIAN-CVE-2023-40587 Aug 25, 2023

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