Memory Allocation with Excessive Size Value Affecting pillow package, versions [,12.3.0)
Threat Intelligence
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The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published6 Jul 2026
- disclosed6 Jul 2026
- creditx-forwarded-sudo
Introduced: 6 Jul 2026
CVE-2026-55379 (opens in a new tab)How to fix?
Upgrade pillow to version 12.3.0 or higher.
Overview
Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value in the bdf_char process when attacker-controlled dimensions from a BDF font file are passed to Image.new() without invoking the _decompression_bomb_check function. An attacker can cause excessive memory allocation by supplying specially crafted font files.