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Pillow TGA RLE encoder can serialize up to ~57 KB of adjacent heap data into generated images

python-pillow Pillow · CVE-2026-59198
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What is it?

Pillow is a Python imaging library. From 5.2.0 until 12.3.0, Pillow's TGA RLE encoder reads past its packed row buffer when saving a mode 1 image with TGA RLE compression, allowing adjacent process heap bytes to be copied into the generated TGA file. This issue is fixed in version 12.3.0.

Evidence

No coverage recorded yet.

Exploitation

  • Public proof of concept
  • Exploited in the wild
  • Listed as known exploited
CVSS
6.5
EPSS
0.3%
First seen
1 d ago
Status
corroborated

All python-pillow vulnerabilities