Detections
Analytics

SCA: security update for pypdf (GHSA-m449-cwjh-6pw7)

high Tenable Cloud Security Plugin ID 436158

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - pypdf is a free and open-source pure-python PDF library. Prior to version 6.4.0, an attacker who uses this
 vulnerability can craft a PDF which leads to a memory usage of up to 1 GB per stream. This requires
 parsing the content stream of a page using the LZWDecode filter. This issue has been patched in version
 6.4.0. (CVE-2025-66019)

See Also

https://github.com/advisories/GHSA-m449-cwjh-6pw7

Plugin Details

Severity: High

ID: 436158

Version: Revision 1.10

Type: Local

Family: SCA Checks

Published: 11/25/2025

Updated: 6/1/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.26

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2025-66019

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 11/24/2025

Vulnerability Publication Date: 11/24/2025

Reference Information

CVE: CVE-2025-66019