This vulnerability affects the popular open-source Pillow Python imaging library used across countless Python applications. Processing a maliciously crafted PSD file in an affected version can trigger memory corruption. Successful exploitation can lead to application crash or potentially arbitrary code execution on the system processing the file.
Remediation
Upgrade Pillow to version 12.2.0 or later to patch this vulnerability. For applications that process untrusted user-uploaded image files, block PSD file processing until the update is applied. Audit all Python environments that use Pillow to confirm they are running the fixed version.
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