CVE-2026-43996
OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation.
Published May 14, 2026 · updated Jun 17, 2026 · openimageio openimageio
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.
Code
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No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
May 14, 2026 · NIST NVD
Detected
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 subse
Jun 17, 2026 · NIST NVD
Updated
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 subse
Affected
- cpe openimageio/openimageioversion unspecified
- cpe openimageio/openimageio3.2.0.0
- cpe openimageio/openimageio3.2.0.2
Sources
- CVE.orgVulnerability recordCVE-2026-43996
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-43996
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
nvd.nist.gov