← CVE Intelligence

CVE-2026-112390

Pillow: Infinite loop in MIC n_frames when the embedded TIFF PUBLISHED

Description (CNA)

Pillow is a Python imaging library. From 7.2.0 until 13.0.0, Pillow can enter an infinite loop while determining the frame count of a MIC image. MicImageFile inherits TIFF frame traversal, but MicImageFile.tell reports the OLE stream index and its seek() resets TIFF frame state, so an embedded TIFF with at least three IFDs never advances. When an application with olefile installed reads n_frames or saves all frames from a crafted MIC file, the non-advancing traversal can hold a worker at full CPU indefinitely. This issue is fixed in version 13.0.0.

Affected (CNA)

Vendor / productVersions
python-pillow / Pillowaffected >= 7.2.0, < 13.0.0

CWE

CWE-835

References

ADP enrichment

CISA-ADP

No English description supplied.