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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-91814

Security vulnerability: Foxit PDF Editor/Reader Fails to Detect Modifications to Signed Documents Displaying Newly Added Content

Description

A signature validation vulnerability exists in Foxit PDF Editor/Reader’s handling of incrementally updated PDF documents. Changes to visible document content may not invalidate the existing signature, allowing attackers to alter signed content and potentially carry out content spoofing while the document continues to appear validly signed.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Foxit Software Inc. Foxit PDF Editor

Default version status: unaffected

  • Versions 2026.2 and earlieraffected
  • Versions 14.0.7 and earlieraffected
  • Versions 13.2.6 and earlieraffected

Foxit Software Inc. Foxit PDF Reader

Default version status: unaffected

  • Versions 2026.2 and earlieraffected

References