CVE-2026-43904
CVE-2026-43904 is a high-severity vulnerability in Openimageio with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v4: 8.4
- EPSS exploit prediction: 0% (7th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-30392
- Weakness: CWE-787
- Affected product: Openimageio
- Published:
- Last modified:
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, 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.
Frequently asked questions
- What is CVE-2026-43904?
- 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.
- How severe is CVE-2026-43904?
- CVE-2026-43904 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-43904 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-43904?
- CVE-2026-43904 affects Openimageio. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-43904?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-43904 have an EU (EUVD) identifier?
- Yes. CVE-2026-43904 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30392.
- When was CVE-2026-43904 published?
- CVE-2026-43904 was published on 2026-05-14 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:openimageio:openimageio:*:*:*:*:*:*:*:*
More vulnerabilities in Openimageio
- CVE-2024-55194 — Critical (CVSS 9.8): OpenImageIO v3.1.0.0dev was discovered to contain a heap overflow via the component /OpenImageIO/fmath.h.
- CVE-2024-55193 — Critical (CVSS 9.8): OpenImageIO v3.1.0.0dev was discovered to contain a segmentation violation via the component /OpenImageIO/string_view.h.
- CVE-2024-55192 — Critical (CVSS 9.8): OpenImageIO v3.1.0.0dev was discovered to contain a heap overflow via the component…
- CVE-2023-42299 — Critical (CVSS 9.8): Buffer Overflow vulnerability in OpenImageIO oiio v.2.4.12.0 allows a remote attacker to execute arbitrary code and…
- CVE-2022-41838 — Critical (CVSS 9.8): A code execution vulnerability exists in the DDS scanline parsing functionality of OpenImageIO Project OpenImageIO…
- CVE-2022-41837 — Critical (CVSS 9.8): An out-of-bounds write vulnerability exists in the OpenImageIO::add_exif_item_to_spec functionality of OpenImageIO…
All CVEs affecting Openimageio →
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