CVE-2026-32274 — Black: Arbitrary file writes from unsanitized user input in cache file name
Black is the uncompromising Python code formatter. Starting in version 24.3.0 and prior to version 26.3.1, Black writes a cache file, the name of which is computed from various …
Published: 2026-03-12 · CVSS: 8.7 · CVSS 4.0
Black is the uncompromising Python code formatter. Starting in version 24.3.0 and prior to version 26.3.1, Black writes a cache file, the name of which is computed from various formatting options. The value of the --python-cell-magics option was placed in the filename without sanitization, which allowed an attacker who controls the value of this argument to write cache files to arbitrary file system locations. Fixed in Black 26.3.1.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7