CVE-2026-110636 pypdftk - Command Injection

pypdftk <= 0.5 contains a command injection caused by unsafe shell command construction from user-supplied paths in fill_form(), dump_data_fields(), and pdftk_cmd_util(), letting attackers execute OS commands as the Python process, exploit requires attacker control over pdf_path or out_file.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Command Injection
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
14 October 2026
Updated
15 October 2026
Weakness
CWE-78

Vendor fix

Update to the latest version where this issue is fixed.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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