Allocation of Resources Without Limits or Throttling Affecting pypdf package, versions [,6.21.3)
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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- published2 Nov 2026
- disclosed30 Oct 2026
- creditDharmendra Soni
Introduced: 30 Oct 2026
NewCVE-2026-119208 (opens in a new tab)How to fix?
Upgrade pypdf to version 6.21.3 or higher.
Overview
pypdf is an A pure-python PDF library capable of splitting, merging, cropping, and transforming PDF files
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via get_num_pages() in pypdf/_doc_common.py, which returns the raw /Count value from an encrypted PDF's page tree without validation, even after a successful decrypt() call. An attacker can supply a PDF with a forged /Count value, causing huge memory allocations in operations such as page_labels and crashing the process.