CVE•Published 2026-09-01•Modified 2026-10-05•0 articles on news•3 live references•NVD data

CVE-2026-84310Pypdf_project · Pypdf

Vulnerability data via NVD (ingested)

CVSS v3.1

3.3

LOW

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

EPSS percentile

Exploit Prediction Scoring System · top 93% of all CVEs

Weaknesses (CWE)

CWE-405Asymmetric Resource Consumption (Amplification)CWE-834Excessive Iteration

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.

Timeline

Published 2026-09-01

Modified 2026-10-05

External references

NVD MITRE VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-84310

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Pypdf Project Pypdf"

All exposed Pypdf Project Pypdf instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Pypdf"

HTTP body or banner mentions "Pypdf" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-84310