CVE-2026-113786 | py-pdf pypdf up to 6.21.0 DCTDecode Filter input validation

October 21, 2026 Yanac

A vulnerability identified as critical has been detected in py-pdf pypdf up to 6.21.0. This affects an unknown function of the component DCTDecode Filter. Performing a manipulation results in improper input validation.

This vulnerability is cataloged as CVE-2026-113786. It is possible to initiate the attack remotely. There is no exploit available.

You should upgrade the affected component.VulDB Recent EntriesRead More