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Github Security Blog
Github Security Blog
added 2026/07/20 9:13 p.m.16 views

Pillow `BdfFontFile`: `Image.new()` called without `_decompression_bomb_check()` — bomb protection bypass via font loading

Summary PIL/BdfFontFile.py bdfchar lines 84–88 reads the BBX width height field from a BDF font file and passes the dimensions directly to Image.new without calling Image.decompressionbombcheck. This completely bypasses Pillow's documented decompression bomb protection. Image.open enforces...

7.5CVSS6.5AI score0.00421EPSS
SaveExploits1References6Affected Software1
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