PT-2026-41022 · Unknown+2 · Openimageio+2

Medoedus · CVE-2026-43903 · Published 2026-05-14 · Updated 2026-06-17

Positive Technologies (AI Summary)

CVSS v4.0

8.4

High

Base vector

AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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. A heap buffer overflow and crash can occur when processing a crafted .sgi file where the RLE (Run-Length Encoding) count exceeds the scanline width. This happens because the sgiinput.cpp file uses OIIO DASSERT for bounds checking in the RLE decode loop; in release builds, this macro is compiled as a no-op, effectively disabling the bounds checks.

Recommendations Update to version 3.0.18.0. Update to version 3.1.13.0.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2026-43903

GHSA-JG3Q-VM3Q-2J35

USN-8438-1

Affected Products

Linuxmint

Openimageio

Ubuntu

References · 17

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43903.json · Exploit
• 🔥 https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-jg3q-vm3q-2j35 · Exploit
• https://osv.dev/vulnerability/CVE-2026-43903 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-43907 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-43903 · Security Note
• https://ubuntu.com/security/CVE-2026-43904 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-43908 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-43909 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-43903 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-43903 · Security Note
• https://osv.dev/vulnerability/USN-8438-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-8438-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-43903 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-43906 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-43903 · Vendor Advisory