CVE-2026-54060
HighCVSS 7.5Exploitation Probability (EPSS)
Low risk28th percentile - higher than 28% of all known CVEs
Summary
In Pillow before version 12.3.0, FontFile.compile() does not call Image._decompression_bomb_check(), allowing a font to trigger excessive memory allocation during conversion or saving.
Risk Assessment
An attacker can supply a crafted font causing out-of-memory conditions, potentially crashing the application.
Recommendation
Upgrade Pillow to version 12.3.0 or later, which includes the fix for this vulnerability.
Original NVD description (English source)
Pillow is a Python imaging library. Prior to 12.3.0, PIL/FontFile.py FontFile.compile() assembled per-glyph images into a combined bitmap with Image.new("1", (xsize, ysize)) without calling Image._decompression_bomb_check(), allowing a font to trigger excessive allocation during conversion or saving. This issue is fixed in version 12.3.0.