CVE•Published 2026-05-28•Modified 2026-05-29•0 articles on news•5 live references•NVD data

CVE-2026-48156Pypdf_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

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Weaknesses (CWE)

CWE-834Excessive Iteration

Description

pypdf is a free and open-source pure-python PDF library. Prior to 6.12.0, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with /W [0 0 0] values and large /Size values. This vulnerability is fixed in 6.12.0.

Timeline

Published 2026-05-28

Modified 2026-05-29

External references

NVD MITRE Exploit-DB Sploitus 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-2026-48156

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-2026-48156