CVE•Published 2026-05-09•Modified 2026-05-12•0 articles on news•6 live references•NVD data

CVE-2026-42310Python · Pillow

Vulnerability data via NVD (ingested)

CVSS v3.1

5.5

MEDIUM

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

EPSS percentile

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Weaknesses (CWE)

CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')

Description

Pillow is a Python imaging library. From version 4.2.0 to before version 12.2.0, an attacker can supply a malicious PDF that causes the process to hang indefinitely, consuming 100% CPU and making the application unresponsive. This issue has been patched in version 12.2.0.

Timeline

Published 2026-05-09

Modified 2026-05-12

External references

NVD MITRE Exploit-DB GitHub PoC 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-2026-42310

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Python Pillow"

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

Shodan · banner/body mention

http.html:"Pillow"

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

More intel sources (5)

Shodan report

vuln:CVE-2026-42310