Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-65970

CVE-2026-65970MEDIUM

AcademySoftwareFoundation OpenImageIO — OpenImageIO: TIFF multithreaded scanline read use-after-scope in `TIFFInput::read_native_scanlines`

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   H   N   R  U  N  N  H    5.3   .0042   34.4     —

AFFECTED
  Product      Versions      Fixed
  OpenImageIO  < 3.1.16.0 –  —

TIMELINE
  Jul 23  Reserved by GitHub_M
  Sep 18  Published (CNA: GitHub_M)
  Sep 29  EXPLOIT PUBLISHED — CVE-2026-65970 (AcademySoftwareFoundation OpenImageIO). Public exploit reference added.

CWE-825 · CNA: GitHub_M · CVSS v3.1 · 4 references · NVD status: Analyzed

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
July 23, 2026	Reserved	Reserved by GitHub_M
September 18, 2026	Published	Published (CNA: GitHub_M)
September 29, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-65970 (AcademySoftwareFoundation OpenImageIO). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
AcademySoftwareFoundation	OpenImageIO	—	< 3.1.16.0	—

Weaknesses

CWE-825

References (4)

https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/31201c22df477b105b105c0dcfbf5d3d46db431b [Patch]
https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5294 [Issue Tracking, Patch]
https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.16.0 [Release Notes]
https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-v278-gpwr-r836 [Exploit, Mitigation, Vendor Advisory]

Authoritative record: CVE-2026-65970 at cve.org

Vendors: academysoftwarefoundation

Weaknesses: CWE-825

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-65970 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.