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CVE-2026-65970— OpenImageIO: TIFF multithreaded scanline read use-after-scope in `TIFFInput::read_native_scanlines`

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 is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.1.16.0, a crafted ZIP-compressed TIFF processed with TIFF multithreading enabled can make TIFFInput::read_native_scanli

CVSS 5.3 · Medium

Affected Version Matrix 1

VendorProduct Version RangeStatus
AcademySoftwareFoundation OpenImageIO < 3.1.16.0 affected
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I. Basic Information for CVE-2026-65970

Vulnerability Information

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Vulnerability Title
OpenImageIO: TIFF multithreaded scanline read use-after-scope in `TIFFInput::read_native_scanlines`
Source: CVE Program / CVE List V5
Vulnerability Description
OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.1.16.0, a crafted ZIP-compressed TIFF processed with TIFF multithreading enabled can make TIFFInput::read_native_scanlines() return through an error path while asynchronous strip-decompression work remains queued. Because task_set is declared before ok and compressed_scratch, those captured objects are destroyed before the task-set destructor waits, allowing worker tasks to use stale stack and heap storage, resulting in a use-after-scope crash and denial of service. The affected implementation is identified by src/tiff.imageio/tiffinput.cpp, TIFFInput::read_native_scanlines(), task_set, ok, compressed_scratch, and uncompress_one_strip(), which define the relevant source path, functions, state, and trigger. This issue is fixed in 3.1.16.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
无效指针解引用
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
AcademySoftwareFoundation OpenImageIO < 3.1.16.0 -

II. Public POCs for CVE-2026-65970

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III. Intelligence Information for CVE-2026-65970

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Patches & Fixes for CVE-2026-65970 (2)

Vendor Advisories for CVE-2026-65970 (1)

Other References for CVE-2026-65970 (1)

Same Patch Batch · AcademySoftwareFoundation · 2026-09-18 · 11 CVEs total

CVE-2026-63638 8.3 HIGH OpenImageIO: Cineon invalid bit depth heap out-of-bounds write
CVE-2026-63422 7.8 HIGH OpenImageIO OpenEXR plugin partial edge tile heap out-of-bounds write
CVE-2026-63419 7.8 HIGH OpenImageIO: IFF ZBUFFER tile read writes past caller tile buffer
CVE-2026-67549 7.6 HIGH OpenImageIO: TIFF 1-bit CMYK bit conversion heap out-of-bounds write
CVE-2026-59156 6.5 MEDIUM OpenImageIO: Unbounded recursion in FITS header parser leads to stack overflow
CVE-2026-59956 6.1 MEDIUM OpenImageIO: Heap-buffer-overread in IffInput::readimg() when ZBUFFER flag is set
CVE-2026-59181 6.1 MEDIUM OpenImageIO: Stack buffer overflow in OpenImageIO Cineon reader via unchecked numberOfElem
CVE-2026-63420 5.5 MEDIUM OpenImageIO: PSD RawColor indexed image out-of-bounds read in `interleave_row`
CVE-2026-63635 5.5 MEDIUM OpenImageIO: PSD RawColor invalid color mode causes global out-of-bounds read and allocati
CVE-2026-65969 5.5 MEDIUM OpenImageIO: TGA-to-GIF palette split signed overflow causes SIGSEGV

IV. Related Vulnerabilities

Same product: OpenImageIO
Same vendor: AcademySoftwareFoundation
Same weakness: CWE-825

V. Comments for CVE-2026-65970

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