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OpenImageIO EUVD-2026-30387

| CVE-2026-43903 HIGH
Out-of-bounds Write (CWE-787)
2026-05-14 GitHub_M
8.4
CVSS 4.0
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CVSS VectorNVD

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
A
Scope
X

Lifecycle Timeline

5
Analysis Generated
May 14, 2026 - 21:49 vuln.today
Patch available
May 14, 2026 - 21:32 EUVD
CVSS changed
May 14, 2026 - 20:22 NVD
8.4 (HIGH)
CVE Published
May 14, 2026 - 19:10 nvd
UNKNOWN (no severity yet)
CVE Published
May 14, 2026 - 19:10 nvd
HIGH 8.4

DescriptionNVD

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, sgiinput.cpp:265,274 use OIIO_DASSERT for bounds checking in the RLE decode loop. In release builds, OIIO_DASSERT compiles to ((void)sizeof(x)) (dassert.h:210), making all bounds checks no-ops. A crafted .sgi file with RLE count exceeding scanline width causes heap buffer overflow and crash. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.

AnalysisAI

Heap buffer overflow in OpenImageIO's SGI image decoder allows arbitrary code execution via specially crafted .sgi files. Affects versions before 3.0.18.0 and 3.1.13.0 when processing malicious SGI images with invalid RLE compression parameters. …

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RemediationAI

Within 24 hours: Identify all systems running OpenImageIO and document current versions (check installation paths and package managers). Within 7 days: Upgrade OpenImageIO to version 3.0.18.0 or later (3.1.x users require 3.1.13.0 or later) across development, rendering, and production workstations. …

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Vendor StatusVendor

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EUVD-2026-30387 vulnerability details – vuln.today

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