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Fencer Vulns
high 7.8

CVE-2026-43904 json

OpenImageIO: Softimage PIC RLE decoder heap buffer overflow — longCount not clamped to image width

published 2026-05-14 5 mo ago modified 2026-10-26 13 d ago also EUVD-2026-30392

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 6%
public exploits
0
none known

Summary

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, softimageinput.cpp:469 (mixed RLE) and :345 (pure RLE) do not clamp the run length to remaining scanline width before writing pixels. The raw packet path (line 403) correctly clamps with std::min, but RLE paths skip this check. A crafted .pic file causes heap overflow up to 65535 bytes. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.

Patch / fix

  • openimageio openimageio 3.0.18.0, 3.1.13.0
  • openimageio Debian 14 3.1.18.0+dfsg-2

debian advisories DEBIAN-CVE-2026-43904

  • openimageio Ubuntu Pro 16.04 LTS 1.6.11~dfsg0-1ubuntu1+esm2
  • openimageio Ubuntu Pro 18.04 LTS 1.7.17~dfsg0-1ubuntu2+esm1
  • openimageio Ubuntu Pro 20.04 LTS 2.1.12.0~dfsg0-1ubuntu0.1~esm1
  • openimageio Ubuntu Pro 24.04 LTS 2.4.17.0+dfsg-1.1ubuntu0.1~esm1
  • openimageio Ubuntu Pro 26.04 LTS 2.5.19.1+dfsg-2ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2026-43904

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-43904 updated cvss 7.3

OpenImageIO: OpenImageIO: Heap overflow via crafted .pic file can lead to arbitrary code execution

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
5 mo ago

Exploit prediction

0.17% chance of exploitation in the next 30 days, higher than 6% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-4499-j545-7q33 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 8.4 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
CNA 4.0 8.4 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • AcademySoftwareFoundation OpenImageIO

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.