What is CVE-2026-43903?

CVE-2026-43903 is a high-severity vulnerability in Academysoftwarefoundation Openimageio, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2026-05-14.

How severe is CVE-2026-43903?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Academysoftwarefoundation Openimageio

CVE-2026-43903

OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, sgiinput.cpp:265,274 use OIIO_DASSERT for bounds checking in the RLE decode l…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (2.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Academysoftwarefoundation Openimageio — versions < 3.0.18.0, >= 3.1.4.0-beta, < 3.1.13.0
Openimageio

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2026-43903?: CVE-2026-43903 is a high-severity vulnerability in Academysoftwarefoundation Openimageio, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2026-05-14.
How severe is CVE-2026-43903?: High severity. CVSS v3 base score is 7.8 out of 10.