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TI-2026-76948 Aliases CVE-2026-113681GHSA-pxpf-24pm-xj4x

Heap out-of-bounds read in OpenImageIO Cineon reader

Priority LOW 29CWE-190Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-190 and the CVSS impact.

Summary

OpenImageIO before 3.0.20.0, from 3.1.0.0 before 3.1.15.0, and from 3.2.0.0-dev before 3.2.0.3-beta1 is affected. An integer overflow (CWE-190) in cineon::Codec::Read undersizes the scanline buffer, so the reader reads past a heap buffer. A local attacker can craft a Cineon file with a huge declared width, and if a user opens it, the application reads out of bounds and crashes.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00165 5th percentileScored 2026-11-07
Fix Fixed OpenImageIO (AcademySoftwareFoundation): 3.0.20.0, 3.1.15.0, 3.2.0.3-beta1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AcademySoftwareFoundationOpenImageIObefore 3.0.20.0; 3.1.0.0 to before 3.1.15.0; 3.2.0.0-dev to before 3.2.0.3-beta13.0.20.0, 3.1.15.0, 3.2.0.3-beta1Patch availableCNA
  • OpenImageIO VendorAcademySoftwareFoundation Affected before 3.0.20.0; 3.1.0.0 to before 3.1.15.0; 3.2.0.0-dev to before 3.2.0.3-beta1 Fixed in 3.0.20.0, 3.1.15.0, 3.2.0.3-beta1 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:openimageio:openimageio:*:*:*:*:*:*:*:*——OpenImageIO Project

Remediation

Update OpenImageIO to the fixed version for your branch: 3.0.20.0, 3.1.15.0 or 3.2.0.3-beta1.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA OpenImageIO (AcademySoftwareFoundation) Fixed in 3.0.20.0, 3.1.15.0, 3.2.0.3-beta1

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-20 Threatist record created from CVE-2026-113681
  2. 2026-10-20 CISA SSVC decision points changed
  3. 2026-10-20 Priority changed: MEDIUM → LOW
  4. 2026-10-21 Alias added: GHSA-pxpf-24pm-xj4x
  5. 2026-10-21 Affected versions changed · Red Hat
  6. 2026-10-21 CVSS score added · Red Hat

References

Patch 3

Other 1

  • TI-2026-30739 OpenColorIO vulnerable to stack buffer overflow via unbounded `sscanf %s` in Spi3D (.spi3d) LUT parser CVSS 4.0HIGH 8.4
  • TI-2026-38605 OpenEXR: Unhandled assert abort in HTJ2K decoder via crafted QCD marker (DoS) CVSS 4.0HIGH 7.1
  • TI-2026-48281 OpenEXR: Heap out-of-bounds write in exrmultiview with subsampled channel union CVSS 3.1HIGH 7.1
  • TI-2026-48279 OpenEXR: Heap buffer overflow in PyOpenEXR from literal/prefixed RGB channel name collision CVSS 3.1HIGH 7.1
  • TI-2026-42768 OpenEXR: Heap OOB read in SampleCountChannel row when using nonzero dataWindow CVSS 3.1HIGH 7.1
  • TI-2026-42338 OpenEXR: Out-of-bounds read in DeepImageChannel::row() for non-zero dataWindow origin CVSS 3.1HIGH 7.1
See all 26 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences