Openimageio

OpenImageIO before 3.0.20.0, 3.1.x before 3.1.15.0, and 3.2.x before 3.2.0.3-beta1 contains an integer overflow in cineon::Codec::Read that undersizes the scanline buffer, causing a heap out-of-bounds read. Attackers can supply a crafted Cineon file with a huge declared width that wraps the size calculation to zero, so UnPackPacked reads past a 4-byte buffer and crashes the application.

Published: 2026-10-20T15:40:41.797Z
Updated: 2026-10-22T09:49:36.614Z

A vulnerability was detected in AcademySoftwareFoundation OpenImageIO up to 3.2.0.1-dev. This vulnerability affects unknown code of the file src/dds.imageio/ddsinput.cpp of the component DDS Image Handler. The manipulation results in out-of-bounds write. The attack needs to be approached locally. The exploit is now public and may be used. The patch is identified as 94ec2deec3e3bf2f2e2ff84d008e27425d626fe2. Applying a patch is advised to resolve this issue.

Published: 2026-05-01T13:45:12.332Z
Updated: 2026-05-04T16:14:54.523Z

OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, the bounds check in TGAInput::decode_pixel computes k + palbytespp as unsigned 32-bit arithmetic. When k = 0xFFFFFFFC and palbytespp = 4, the addition wraps to 0, which compares less than palette_alloc_size and passes the check. The subsequent palette access uses the unwrapped k (0xFFFFFFFC) as the index, reading ~4 GB past the start of the palette buffer — SEGV. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.

Published: 2026-05-14T19:08:26.307Z
Updated: 2026-05-16T00:53:37.525Z

OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, a signed 32-bit integer overflow in the loop index expression i * 4 inside SwapRGBABytes() causes the function to compute a large negative pointer offset when processing kABGR DPX images with large dimensions. The immediate crash is an out-of-bounds read (the memcpy at line 45 reads from &input[i * 4] first), but the subsequent write operations at lines 46–49 target the same wrapped offset — making this a combined OOB read+write primitive. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.

Published: 2026-05-14T19:00:20.014Z
Updated: 2026-05-14T19:49:59.966Z

OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, a signed 32-bit integer overflow in the pixel-loop index expression i * 3 inside ConvertCbYCrYToRGB() causes the function to compute a large negative pointer offset into the output buffer, producing an out-of-bounds write that crashes the process. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.

Published: 2026-05-14T19:01:21.931Z
Updated: 2026-05-15T14:14:06.187Z