GHSA-588R-CR5C-W6HF OpenEXR has a signed 32-bit Overflow in PIZ Decoder Leads to OOB Read/Write

Summary internalexrundopiz advances the working wavelet pointer with signed 32-bit arithmetic: c wavbuf += nx ny wcount; Because nx, ny, and wcount are int, a crafted EXR file can make this product overflow and wrap. The next channel then decodes from an incorrect address. The wavelet decode path...

CVE-2026-34588

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.1.0 to before 3.2.7, 3.3.9, and 3.4.9, internalexrundopiz advances the working wavelet pointer with signed 32-bit arithmetic. Because nx, ny, and...

CVE-2026-34588

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.1.0 to before 3.2.7, 3.3.9, and 3.4.9, internalexrundopiz advances the working wavelet pointer with signed 32-bit arithmetic. Because nx, ny, and...

CVE-2026-34588 OpenEXR has a signed 32-bit Overflow in PIZ Decoder Leads to OOB Read/Write

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.1.0 to before 3.2.7, 3.3.9, and 3.4.9, internalexrundopiz advances the working wavelet pointer with signed 32-bit arithmetic. Because nx, ny, and...

CVE-2026-34588

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.1.0 to before 3.2.7, 3.3.9, and 3.4.9, internalexrundopiz advances the working wavelet pointer with signed 32-bit arithmetic. Because nx, ny, and...