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OpenImageIO CVE-2026-43904

| EUVD-2026-30392 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 - 21:48 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 - 19:09 nvd
UNKNOWN (no severity yet)
CVE Published
May 14, 2026 - 19:09 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, softimageinput.cpp:469 (mixed RLE) and :345 (pure RLE) do not clamp the run length to remaining scanline width before writing pixels. The raw packet path (line 403) correctly clamps with std::min, but RLE paths skip this check. A crafted .pic file causes heap overflow up to 65535 bytes. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.

AnalysisAI

Heap buffer overflow in OpenImageIO versions before 3.0.18.0 and 3.1.13.0 allows local attackers to corrupt up to 65,535 bytes of memory via malicious Softimage .pic files. The vulnerability arises when processing RLE-compressed images where run-length validation is missing in two code paths (softimageinput.cpp lines 469 and 345), though the raw packet path correctly implements bounds checking. …

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RemediationAI

Within 24 hours: identify all systems running OpenImageIO versions 3.0.x (before 3.0.18.0) or 3.1.x (before 3.1.13.0) using automated asset inventory. Within 7 days: upgrade to OpenImageIO 3.0.18.0 or 3.1.13.0 across all affected systems, prioritizing production rendering and content creation infrastructure. …

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CVE-2026-43904 vulnerability details – vuln.today

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