CVE-2016-9189: Pillow before 3.3.2 allows context-dependent attackers to obtain sensitive information by using the "crafte...

Security readout for executives and security teams

This is an older Pillow image-processing flaw. An application using Pillow before 3.3.2 could expose sensitive memory information when it processes a specially crafted image file. The business risk is mainly in services that accept or transform untrusted images, such as uploads, thumbnails, previews, or document pipelines. Exposure is most likely where Python applications use old Pillow versions to parse images from users, partners, email attachments, scraping jobs, or batch ingestion. Systems that never process attacker-controlled images are less likely exposed. Prioritize remediation for internet-facing or partner-facing systems that process images. This is not marked as actively exploited in the provided sources, but outdated image parsers are high-value attack surfaces and should not remain exposed. Mitigation focus: Upgrade Pillow to 3.3.2 or later where directly installed.; Use vendor-supported patched packages for Debian, Gentoo, or other distributions.; Inventory containers, virtual environments, and bundled application dependencies for old Pillow..

Prepared

Jun 13, 2026, 13:16 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.