Low severity3.3NVD Advisory· Published Sep 1, 2026· Updated Oct 5, 2026
CVE-2026-84310
CVE-2026-84310
Description
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
pypdfPyPI | < 6.16.1 | 6.16.1 |
Affected products
1Patches
Vulnerability mechanics
References
5- github.com/py-pdf/pypdf/commit/d91ab705fd81ed1a9cec175c6958600dea1a4942nvdPatchWEB
- github.com/py-pdf/pypdf/pull/3966nvdPatchWEB
- github.com/py-pdf/pypdf/security/advisories/GHSA-23w6-3w8w-8484nvdPatchVendor AdvisoryWEB
- github.com/advisories/GHSA-23w6-3w8w-8484ghsaADVISORY
- github.com/py-pdf/pypdf/releases/tag/6.16.1nvdRelease NotesWEB
News mentions
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