Detections
Analytics

SCA: security update for pypdf (GHSA-4xc4-762w-m6cg)

medium Tenable Cloud Security Plugin ID 436671

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 6.6.0, pypdf has possible long
 runtimes for missing /Root object with large /Size values. An attacker who uses this vulnerability can
 craft a PDF which leads to possibly long runtimes for actually invalid files. This can be achieved by
 omitting the /Root entry in the trailer, while using a rather large /Size value. Only the non-strict
 reading mode is affected. This issue has been patched in version 6.6.0. (CVE-2026-22690)

See Also

https://github.com/advisories/GHSA-4xc4-762w-m6cg

Plugin Details

Severity: Medium

ID: 436671

Version: Revision 1.13

Type: Local

Family: SCA Checks

Published: 1/11/2026

Updated: 6/1/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-22690

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 2.7

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:L/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 1/9/2026

Vulnerability Publication Date: 1/9/2026

Reference Information

CVE: CVE-2026-22690

cwe: CWE-400