CRITICAL 9.3 NVD
CVE-2026-110636
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 call
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.
References
- https://github.com/revolunet/pypdftk
- https://github.com/revolunet/pypdftk/blob/1d3b40c3b42fb3cc6b0192d34aba2c21a1efd369/pypdftk
- https://github.com/revolunet/pypdftk/issues/56
- https://github.com/revolunet/pypdftk/pull/57
- https://www.vulncheck.com/advisories/pypdftk-through-0.5-os-command-injection-via-pdf-and-
This critical severity vulnerability with a CVSS score of 9.3 was published on 2026-10-14 via NVD.
Risk Timeline
CVE Disclosed2026-10-14 · -1 days ago
Remediation Resources
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