CVE-2026-43996

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Source
https://cve.org/CVERecord?id=CVE-2026-43996
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43996.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-43996
Aliases
  • GHSA-mq8j-73c4-cr55
Downstream
Published
2026-05-14T19:08:26.307Z
Modified
2026-07-08T08:05:14.419916750Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
OpenImageIO: Integer wraparound in bounds check of decode_pixel leads to out-of-bounds read in TGA paletted image decoder
Details

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, the bounds check in TGAInput::decodepixel computes k + palbytespp as unsigned 32-bit arithmetic. When k = 0xFFFFFFFC and palbytespp = 4, the addition wraps to 0, which compares less than palettealloc_size and passes the check. The subsequent palette access uses the unwrapped k (0xFFFFFFFC) as the index, reading ~4 GB past the start of the palette buffer — SEGV. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-125"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43996.json"
}
References

Affected packages

Git / github.com/academysoftwarefoundation/openimageio

Affected ranges

Type
GIT
Repo
https://github.com/academysoftwarefoundation/openimageio
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
54491b2a0c8e4b902c78e23697714220cc001ec9
Fixed
3520073fbb513895a92c5f340a7685690dff6036
Introduced
a0940a9f1e4a8ff20edc9d550a4dea4723d1aa58
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.0.18.0"
        },
        {
            "introduced": "3.1.0.0"
        },
        {
            "fixed": "3.1.13.0"
        },
        {
            "introduced": "3.2.0.0-dev"
        },
        {
            "last_affected": "3.2.0.0-dev"
        },
        {
            "introduced": "3.2.0.2-dev"
        },
        {
            "last_affected": "3.2.0.2-dev"
        }
    ],
    "cpe": [
        "cpe:2.3:a:openimageio:openimageio:*:*:*:*:*:*:*:*",
        "cpe:2.3:a:openimageio:openimageio:3.2.0.0:dev:*:*:*:*:*:*",
        "cpe:2.3:a:openimageio:openimageio:3.2.0.2:dev:*:*:*:*:*:*"
    ],
    "source": [
        "CPE_RANGE",
        "CPE_STRING"
    ]
}

Affected versions

3.*
3.2.0.0-dev
3.2.0.2-dev
Arnold-3.*
Arnold-3.4.72.0
Release-0.*
Release-0.10.0
Release-1.*
Release-1.0.0
Release-1.0.1
Release-1.1.0
Release-1.1.0-beta1
Release-1.1.0-beta2
Release-1.1.0-beta3
Release-1.1.0-beta4
Release-1.1.1
Release-1.3.0-dev
Release-1.3.1-dev
Release-1.3.2-dev
Release-1.3.3-dev
Release-1.3.4-dev
Release-1.3.5
Release-1.3.5-dev
Release-1.3.6-dev
Release-1.4.1dev
Release-1.4.2dev
Release-1.4.3dev
Release-1.4.4dev
Release-1.4.5dev
Release-1.4.6RC1
Release-1.5.0dev
Release-1.5.1dev
Release-1.5.2dev
Release-1.5.3dev
Release-1.5.4dev-pre-SIMD
Release-1.5.5dev
Release-1.5.6dev
Release-1.5.7dev
Release-1.6.1dev
Release-1.6.2dev
Release-1.6.3dev
Release-1.6.4dev
Release-1.6.6beta
Release-1.7.0dev
Release-1.7.1dev
Release-1.7.2dev
Release-1.7.3dev
Release-1.7.4dev
Release-1.7.5beta
Release-1.7.6RC1
Release-1.8.0dev
Release-1.8.1dev
Release-1.8.2dev
Release-1.8.3dev
Release-1.8.4dev
Release-1.9.1dev
Release-1.9.2dev
Release-1.9.3dev
Release-1.9.4dev
Release-2.*
Release-2.0.0-beta1
Release-2.0.1-RC1
Release-2.1.0-dev
Release-2.1.1-dev
Release-2.1.2-dev
Release-2.1.3-dev
Release-2.1.4.0-dev
Release-2.1.5.0-dev
Release-2.1.7-beta
Release-2.1.8.0-RC1
Release-2.2.0.0-dev
Release-2.2.1.0-dev
Release-2.2.1.1-dev
Release-2.2.2.0-dev
Release-2.2.3.0-dev
Release-2.3.0.0-dev
Release-2.3.1.0-dev
Release-2.3.2.0-dev
Release-2.3.3.0-dev
Release-2.3.4.0-dev
arnold-3.*
arnold-3.4.71.0
spi-Arn3.*
spi-Arn3.4.71.0
spi-Arn3.4.72.0
spi-Arn3.4.73.6
spi-Arn3.4.73.7
spi-Arn3.5.0.0
spi-Arn3.5.10.0
spi-Arn3.5.11.0
spi-Arn3.5.12.0
spi-Arn3.5.13.1
spi-Arn3.5.14.0
spi-Arn3.5.16.0
spi-Arn3.5.2.0
spi-Arn3.5.24.0
spi-Arn3.5.25.0
spi-Arn3.5.26.0
spi-Arn3.5.28.0
spi-Arn3.5.31.0
spi-Arn3.5.35.0
spi-Arn3.5.37.0
spi-Arn3.5.41.0
spi-Arn3.5.45.0
spi-Arn3.5.45.1
spi-Arn3.5.48.0
spi-Arn3.5.5.0
spi-Arn3.5.50.0
spi-Arn3.5.66.0
spi-Arn3.5.68.0
spi-Arn3.5.75.0
spi-Arn3.5.8.0
spi-Arn3.5.82.0
spi-Arn3.5.90.0
spi-Arn3.5.91.0
spi-Arn3.5.93.10
spi-Arn3.6.18.0
spi-Arn3.6.21.3
spi-Arn3.6.27.0
spi-Arn3.6.33.4
spi-Arn3.6.36.0
spi-Arn3.6.64.6
spi-Arn3.6.69.3
spi-Arn3.6.7.1
spi-Arn3.6.72.1
spi-Arn3.7.23.3
spi-Arn3.7.25.0
spi-Arn3.7.42.0
Other
spi-SpComp2-v20
spi-SpComp2-v9
spi-spcomp2-release-38.*
spi-spcomp2-release-38.0
spi-spcomp2-release-39.*
spi-spcomp2-release-39.1
spi-spcomp2-release-41.*
spi-spcomp2-release-41.0
spi-spcomp2-release-42.*
spi-spcomp2-release-42.0-rhel7
spi-spcomp2-release-43.*
spi-spcomp2-release-43.0
spi-spcomp2-release-44.*
spi-spcomp2-release-44.0
spi-spcomp2-release-44.1
spi-spcomp2-release-44.2
spi-spcomp2-release-45.*
spi-spcomp2-release-45.0
spi-spcomp2-release-45.1
spi-spcomp2-release-45.3
spi-spcomp2-release-45.4
spi-spcomp2-release-47.*
spi-spcomp2-release-47.0
spi-spcomp2-release-48.*
spi-spcomp2-release-48.0
spi-spcomp2-release-49.*
spi-spcomp2-release-49.1
spi-v7-Arn3.*
spi-v7-Arn3.4.73.3
spi-v8-Arn3.*
spi-v8-Arn3.4.73.6
spiArn-3.*
spiArn-3.6.74.0
spiArn-3.6.84.0
spiArn-3.6.86.0
spiArn-3.6.94.0
spiArn3.*
spiArn3.5.45.0
spiArn3.5.45.1
spiArn3.5.48.0
spiArn3.5.50.0
spiArn3.5.66.0
spiArn3.5.68.0
spiArn3.5.75.0
spiArn3.5.82.0
v2.*
v2.3.5.0-dev
v2.3.6.0-dev
v2.4.0.0-dev
v2.4.0.1-dev
v2.4.0.2-dev
v2.4.0.3-dev
v2.4.1.1-dev
v2.4.2.0-dev
v2.4.2.1-dev
v2.4.2.2-dev
v2.5.0.0-dev
v2.5.2.0-dev
v2.6.1.0-dev
v2.6.2.0-dev
v2.6.5.0-dev
v3.*
v3.0.0.0-beta1
v3.0.0.1-beta2
v3.0.0.2-RC1
v3.0.0.3
v3.0.1.0
v3.0.10.0
v3.0.10.1
v3.0.11.0
v3.0.12.0
v3.0.13.0
v3.0.14.0
v3.0.15.0
v3.0.16.0
v3.0.17.0
v3.0.2.0
v3.0.3.0
v3.0.3.1
v3.0.4.0
v3.0.5.0
v3.0.6.0
v3.0.6.1
v3.0.7.0
v3.0.8.0
v3.0.8.1
v3.0.9.0
v3.1.10.0
v3.1.11.0
v3.1.12.0
v3.1.4.0-beta
v3.1.5.0-beta2
v3.1.6.0-rc1
v3.1.6.1
v3.1.6.2
v3.1.7.0
v3.1.8.0
v3.1.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43996.json"