mediumVulnerability
CVE-2026-84310
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.
Properties
- severity
- medium
- summary
- pypdf: Possible long runtimes/large memory usage when retrieving outlines
- epss_score
- 0.00135
- retrieved_at
- 2026-10-17T10:54:53+00:00
- ghsa_published
- 2026-09-01T21:28:37Z
- source_url
- https://github.com/advisories/GHSA-23w6-3w8w-8484
- ghsa_updated
- 2026-09-01T21:28:39Z
- ghsa_id
- GHSA-23w6-3w8w-8484
- last_source
- FIRST EPSS
- cve_id
- CVE-2026-84310
- signal_observed_at
- 2026-09-11T17:55:57+00:00
- is_ghsa_only
- false
- published_at
- 2026-09-01T21:18:46.740
- last_modified
- 2026-09-09T16:49:20.627
- epss_percentile
- 0.02619
Related Entities (7)
DESCRIBED_BY (1)
→[Source]NVD
ENRICHED_BY (1)
→[Source]FIRST EPSS
VULNERABLE_TO (1)
←[Software]pip/pypdf
AFFECTS (1)
→[Software]pip/pypdf
HAS_WEAKNESS (2)
→[Weakness]Excessive Iteration
→[Weakness]Asymmetric Resource Consumption (Amplification)
REPORTED_BY (1)
→[Source]GitHub Advisory Database
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