CVE-2026-43909
Publication date 14 May 2026
Last updated 18 June 2026
Ubuntu priority
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, a signed 32-bit integer overflow in the loop index expression i * 4 inside SwapRGBABytes() causes the function to compute a large negative pointer offset when processing kABGR DPX images with large dimensions. The immediate crash is an out-of-bounds read (the memcpy at line 45 reads from &input[i * 4] first), but the subsequent write operations at lines 46–49 target the same wrapped offset — making this a combined OOB read+write primitive. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| openimageio | 26.04 LTS resolute |
Fixed 2.5.19.1+dfsg-2ubuntu0.1~esm1
|
| 25.10 questing |
Vulnerable
|
|
| 24.04 LTS noble |
Fixed 2.4.17.0+dfsg-1.1ubuntu0.1~esm1
|
|
| 22.04 LTS jammy |
Vulnerable, fix deferred
|
|
| 20.04 LTS focal |
Fixed 2.1.12.0~dfsg0-1ubuntu0.1~esm1
|
|
| 18.04 LTS bionic |
Fixed 1.7.17~dfsg0-1ubuntu2+esm1
|
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elisehdy
openimageio in jammy is currently FTBFS due to OpenVDB/oneTBB namespace conflict; fix deferred pending resolution.
Severity score breakdown
CVSS version: CVSS v3.0
Base score
8.8 · High
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
Related Ubuntu Security Notices (USN)
- USN-8438-1
- OpenImageIO vulnerabilities
- 16 June 2026