pypdftk through 0.5 contains an OS command injection vulnerability in fill_form(), dump_data_fields(), and pdftk_cmd_util() that builds shell commands from caller-supplied paths. Attackers controlling pdf_path or out_file can inject shell metacharacters interpreted by subprocess.Popen with shell=True to execute OS commands as the Python process.
History

Tue, 20 Oct 2026 02:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 19 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
First Time appeared Revolunet
Revolunet pypdftk
Vendors & Products Revolunet
Revolunet pypdftk

Wed, 14 Oct 2026 14:30:00 +0000

Type Values Removed Values Added
Description pypdftk through 0.5 contains an OS command injection vulnerability in fill_form(), dump_data_fields(), and pdftk_cmd_util() that builds shell commands from caller-supplied paths. Attackers controlling pdf_path or out_file can inject shell metacharacters interpreted by subprocess.Popen with shell=True to execute OS commands as the Python process.
Title pypdftk through 0.5 OS Command Injection via PDF and Output Paths
Weaknesses CWE-78
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-10-14T14:17:08.465Z

Updated: 2026-10-20T01:21:31.597Z

Reserved: 2026-10-14T13:07:32.089Z

Link: CVE-2026-110636

cve-icon Vulnrichment

Updated: 2026-10-20T01:21:24.046Z

cve-icon NVD

Status : Deferred

Published: 2026-10-14T15:17:16.710

Modified: 2026-10-20T02:17:09.833

Link: CVE-2026-110636

cve-icon Redhat

No data.