PT-2026-25073 · Black · Black
Fg0X0
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Published
2026-01-01
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Updated
2026-06-03
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CVE-2026-32274
CVSS v4.0
8.7
High
| Vector | AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N |
Name of the Vulnerable Software and Affected Versions
Black versions prior to 26.3.1
Description
Black, a Python code formatter, prior to version 26.3.1, improperly sanitizes user-supplied input when constructing the filename for a cache file. Specifically, the value provided to the
--python-cell-magics option is directly incorporated into the filename without validation. This allows an attacker who can control the value of the --python-cell-magics argument to write cache files to arbitrary locations on the file system. The vulnerable component is the process of creating the cache filename. The vulnerable parameter is --python-cell-magics.Recommendations
Versions prior to 26.3.1 should be updated to version 26.3.1 or later.
Do not allow untrusted user input to be used as the value for the
--python-cell-magics option.Exploit
Fix
DoS
Path traversal
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Weakness Enumeration
Related Identifiers
Affected Products
Black