Vulnerability details

CVE-2026-43903

AcademySoftwareFoundation OpenImageIO

OpenImageIO: SGI RLE decoder heap buffer overflow OIIO_DASSERT bounds checks are no-ops in release builds

CVSS 4.0
8.4High

Official description

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 loop. In release builds, OIIO_DASSERT compiles to ((void)sizeof(x)) (dassert.h:210), making all bounds checks no-ops. A crafted .sgi file with RLE count exceeding scanline width causes heap buffer overflow and crash. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.

CVSS scores

ScoreVersionSourceVector
8.4High 4.0 CVEProject cvelistV5 (CNA) (GitHub_M) CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Affected products

VendorProductVersionsSource
AcademySoftwareFoundation OpenImageIO < 3.0.18.0 CVEProject cvelistV5 (CNA)
AcademySoftwareFoundation OpenImageIO >= 3.1.4.0-beta, < 3.1.13.0 CVEProject cvelistV5 (CNA)

References and advisories

1
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Details

Published
2026-05-14
Last updated
2026-05-14
State
Published
Assigner (CNA)
GitHub_M

Exploit prediction (EPSS)

0.12%
Probability of exploitation in 30 days
2.3%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
No
Exploitation
Proof of concept
Technical impact
Total

Weaknesses (CWE)

  • CWE-787
    Out-of-bounds Write