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CVE-2026-43904— OpenImageIO: Softimage PIC RLE decoder heap buffer overflow — longCount not clamped to image width

AI Predicted 8.5 Difficulty: Moderate EPSS 0.01% · P2

Possible ATT&CK Techniques 1AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 2

VendorProductVersion RangeStatus
AcademySoftwareFoundationOpenImageIO< 3.0.18.0affected
>= 3.1.4.0-beta, < 3.1.13.0affected
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I. Basic Information for CVE-2026-43904

Vulnerability Information
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Vulnerability Title
OpenImageIO: Softimage PIC RLE decoder heap buffer overflow — longCount not clamped to image width
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存写
Source: NVD (National Vulnerability Database)
Vulnerability Title
OpenImageIO 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenImageIO是OpenImageIO开源的一个图像处理库。具有易于使用的界面和大量受支持的图像格式。 OpenImageIO 3.0.18.0之前版本和3.1.13.0之前版本存在缓冲区错误漏洞，该漏洞源于softimageinput.cpp中RLE路径未将运行长度限制为剩余扫描线宽度，导致堆溢出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
AcademySoftwareFoundationOpenImageIO < 3.0.18.0 -

II. Public POCs for CVE-2026-43904

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III. Intelligence Information for CVE-2026-43904

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Same Patch Batch · AcademySoftwareFoundation · 2026-05-14 · 8 CVEs total

CVE-2026-439088.8 HIGHOpenImageIO: Signed integer overflow in ConvertCbYCrYToRGB leads to heap out-of-bounds wri
CVE-2026-439098.8 HIGHOpenImageIO: Signed integer overflow in SwapRGBABytes loop index leads to out-of-bounds re
CVE-2026-439078.3 HIGHOpenImageIO: Integer overflow in QueryRGBBufferSizeInternal leads to heap out-of-bounds wr
CVE-2026-439965.5 MEDIUMOpenImageIO: Integer wraparound in bounds check of decode_pixel leads to out-of-bounds rea
CVE-2026-43903OpenImageIO: SGI RLE decoder heap buffer overflow OIIO_DASSERT bounds checks are no-ops in
CVE-2026-43906OpenImageIO: HEIF Heap overflow
CVE-2026-43905OpenImageIO: JPEG2000 (OpenJPH) signed integer overflow in buffer allocation

IV. Related Vulnerabilities

Same product: OpenImageIO
Same vendor: AcademySoftwareFoundation
Same weakness: CWE-787

V. Comments for CVE-2026-43904

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