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CVE-2026-63420

OpenImageIO: PSD RawColor indexed image out-of-bounds read in `interleave_row`

CVSS 3.1 5.5 MEDIUMCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-63420

Published

OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1, An indexed psd with transparency metadata creates fewer stored channel_buffers than the spec.nchannels value advertised by the rawcolor path. when oiio:rawcolor or psd:rawdata is enabled, psdinput::read_native_scanline() passes spec.nchannels to psdinput::interleave_row(), which indexes beyond channel_buffers, resulting in a heap out-of-bounds read and process crash. The affected implementation is identified by src/psd.imageio/psdinput.cpp, PSDInput::read_native_scanline(), PSDInput::interleave_row(), oiio:RawColor, psd:RawData, channel_buffers, and spec.nchannels, which define the relevant source path, functions, state, and trigger. This issue is fixed in versions 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-63420

Published

OpenImageIO

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "AcademySoftwareFoundation",
                    "product": "OpenImageIO",
                    "versions": [
                        {
                            "version": "< 3.0.21.0",
                            "status": "affected"
                        },
                        {
                            "version": ">= 3.1.0.0, < 3.1.16.0",
                            "status": "affected"
                        },
                        {
                            "version": ">= 3.2.0.0-dev, < 3.2.0.3-beta1",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON