PT-2026-41024 · Unknown · Openimageio

Medoedus · Published 2026-05-14 · Updated 2026-05-14 · CVE-2026-43905

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions OpenImageIO versions prior to 3.0.18.0 OpenImageIO versions prior to 3.1.13.0

Description OpenImageIO is a toolset for reading, writing, and manipulating image files for VFX and animation. An issue exists in jpeg2000input.cpp where the buffer size is computed using signed 32-bit arithmetic via the calculation const int bufsize = w * h * ch * buffer bpp. If the resulting product exceeds INT MAX, the value wraps to zero or a small number, causing m buf.resize() to allocate an undersized buffer. This leads to a heap overflow during subsequent pixel write loops. This issue is conditional on the USE OPENJPH build flag.

Recommendations Update to version 3.0.18.0. Update to version 3.1.13.0.

Exploit

Fix

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2026-43905

GHSA-PJ45-CF3G-28GQ

Affected Products

Openimageio

References · 9

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43905.json · Exploit
• 🔥 https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-pj45-cf3g-28gq · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-43905 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-43905 · Security Note
• https://osv.dev/vulnerability/CVE-2026-43905 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-43905 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-43905 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-43905 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-43905 · Security Note