CVE-2026-84310
4.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Summary
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/_doc_common.py _get_outline to consume long runtimes and large amounts of memory when retrieving document outlines with large numbers of entries or deeply nested reused paths because the traversal lacked global entry-count and nesting-depth limits. This issue is fixed in version 6.16.1.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| py-pdf | pypdf | < 6.16.1 | affected |
Weaknesses
- CWE-405: CWE-405: Asymmetric Resource Consumption (Amplification)
- CWE-834: CWE-834: Excessive Iteration
References
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-23w6-3w8w-8484
- 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
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