Description (CNA)
pypdf is a free and open-source pure-python PDF library. Prior to 6.16.1, an attacker can craft a PDF that causes pypdf/_page.py PageObject._extract_text and PageObject.extract_xform_text to traverse a directed acyclic graph of reused form XObjects in which each form invokes a child multiple times, creating exponentially many traversal paths and causing long runtimes and large memory consumption. This issue is fixed in version 6.16.1.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| py-pdf / pypdf | affected < 6.16.1 |
CWE
CWE-834
References
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-763m-79hh-57f2
- https://github.com/py-pdf/pypdf/pull/3966
- https://github.com/py-pdf/pypdf/commit/d91ab705fd81ed1a9cec175c6958600dea1a4942
- https://github.com/py-pdf/pypdf/releases/tag/6.16.1
ADP enrichment
No English description supplied.
No references supplied.