JLSEC-2026-808

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Source

https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-808.md

Import Source

https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-808.json

JSON Data

https://api.osv.dev/v1/vulns/JLSEC-2026-808

Upstream

CVE-2026-40250

Published

2026-07-29T14:18:08.707Z

Modified

2026-07-29T14:30:03.988551922Z

Severity

7.1 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H CVSS Calculator
8.4 (High) CVSS_V4 - 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 CVSS Calculator

Summary

Integer overflow in OpenEXR's `internal_dwa_compressor`

Details

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.4.0 through 3.4.9, 3.3.0 through 3.3.9, and 3.2.0 through 3.2.7, internal_dwa_compressor.h:1040 performs chan->width * chan->bytes_per_element in int32 arithmetic without a (size_t) cast. This is the same overflow pattern fixed in other decoders by CVE-2026-34589/34588/34544, but this line was missed. Versions 3.4.10, 3.3.10, and 3.2.8 contain a fix that addresses internal_dwa_compressor.h:1040.

Database specific

{
    "sources": [
        {
            "modified": "2026-06-17T10:44:54.573Z",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-40250",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40250",
            "published": "2026-04-21T02:16:08.213Z",
            "id": "CVE-2026-40250",
            "database_specific": {
                "status": "Analyzed"
            },
            "imported": "2026-07-29T13:22:20.944Z"
        }
    ],
    "license": "CC-BY-4.0"
}

References

Affected packages

Julia / OpenEXR_jll

Package

Name: OpenEXR_jll
Purl: pkg:julia/OpenEXR_jll?uuid=18a262bb-aa17-5467-a713-aee519bc75cb

Affected ranges

Type: SEMVER
Events: Introduced

3.1.4+0

Fixed

3.4.12+0

Database specific

source

"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-808.json"