Memory Allocation with Excessive Size Value Affecting pypdf2 package, versions [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-PYPDF2-16097902
- published17 Apr 2026
- disclosed16 Apr 2026
- creditL3B4nk4
Introduced: 16 Apr 2026
CVE-2026-41312 (opens in a new tab)How to fix?
There is no fixed version for PyPDF2.
Overview
PyPDF2 is an A pure-python PDF library capable of splitting, merging, cropping, and transforming PDF files
Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value via the FlateDecode method when handling streams with a /Predictor value not equal to 1 and large predictor parameters. An attacker can cause excessive memory consumption by crafting a specially formed PDF file.