CVE-2026-113681CWE-190

CVE-2026-113681

Medium · published October 20, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
5.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS v4.0
6.8 · CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00165 · 5.4th percentile
Weakness
CWE-190 · Integer Overflow or Wraparound
Published
2026-10-20T20:17Z
References (5)
https://github.com/AcademySoftwareFoundation/OpenImageIO/blob/v3.0.19.0/src/cineon.imageio/libcineon/Codec.cpp#L79-L82 · [email protected]https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/07e3c3e0373551c57e7d8e01353deaa4b3646613 · [email protected]https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5567 · [email protected]https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5568 · [email protected]https://www.vulncheck.com/advisories/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 · [email protected]
EPSS history
Timeline
  • 22 OCT 03:29Z
    EPSS moved — → 0%
    epss
  • 20 OCT 15:40Z
    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
    cvelistv5
  • 20 OCT 15:40Z
    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
    cvelistv5