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CVE-2026-113681— OpenImageIO before 3.0.20.0, 3.1.x before 3.1.15.0, and 3.2.x before 3.2.0.3-beta1 Cineon Reader Heap Out-of-Bounds Read

Quick assessment

Affected
AcademySoftwareFoundation OpenImageIO
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenImageIO 在 3.0.20.0 之前版本、3.1.x 系列中 3.1.15.0 之前的版本，以及 3.2.x 系列中 3.2.0.3-beta1 之前的版本，存在一个整数溢出漏洞。该漏洞位于 函数中，导致扫描线缓冲区分配过小，进而引发堆越界读取。攻击者可构造一个声明宽度极大的 Cineon 文件，使尺寸计算发生回绕并变为零；这会导致 函数读取超出 4 字节缓冲区的内存，最终造成应用程序崩溃。

CVSS 5.5 · Medium

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2026-113681

Vulnerability Information
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Vulnerability Title
OpenImageIO before 3.0.20.0, 3.1.x before 3.1.15.0, and 3.2.x before 3.2.0.3-beta1 Cineon Reader Heap Out-of-Bounds Read
Source: CVE Program / CVE List V5
Vulnerability Description
OpenImageIO before 3.0.20.0, 3.1.x before 3.1.15.0, and 3.2.x before 3.2.0.3-beta1 contains an integer overflow in cineon::Codec::Read that undersizes the scanline buffer, causing a heap out-of-bounds read. Attackers can supply a crafted Cineon file with a huge declared width that wraps the size calculation to zero, so UnPackPacked reads past a 4-byte buffer and crashes the application.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
AcademySoftwareFoundation OpenImageIO 0 ~ 3.0.20.0 -

II. Public POCs for CVE-2026-113681

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III. Intelligence Information for CVE-2026-113681

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Other References for CVE-2026-113681 (5)

IV. Related Vulnerabilities

Same product: OpenImageIO
Same vendor: AcademySoftwareFoundation
Same weakness: CWE-190

V. Comments for CVE-2026-113681

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