Improper Handling of Highly Compressed Data (Data Amplification) Affecting pillow package, versions [4.1.0,12.3.0)
Threat Intelligence
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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Test your applications- Snyk IDSNYK-PYTHON-PILLOW-21277787
- published20 Oct 2026
- disclosed19 Oct 2026
- creditJoshua Rogers
Introduced: 19 Oct 2026
NewCVE-2026-112892 (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 Improper Handling of Highly Compressed Data (Data Amplification) via the MSP image decoder in src/PIL/MspImagePlugin.py, where a malicious MSP file with run-length encoded rows can cause the decoder to expand more data than the image width requires. An attacker who supplies a crafted MSP image can trigger excessive memory allocation, crashing the process.