JLSEC-2026-646

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Source

https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-646.md

Import Source

https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-646.json

JSON Data

https://api.osv.dev/v1/vulns/JLSEC-2026-646

Upstream

CVE-2025-59733

EUVD-2025-32183

GHSA-hpfq-c235-5854

Published

2026-06-26T20:24:16.337Z

Modified

2026-06-26T20:34:17.250655103Z

Severity

8.7 (High) CVSS_V4 - CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N CVSS Calculator

Summary

When decoding an OpenEXR file that uses DWAA or DWAB compression, there's an implicit assumption...

Details

When decoding an OpenEXR file that uses DWAA or DWAB compression, there's an implicit assumption that all image channels have the same pixel type (and size), and that if there are four channels, the first four are "B", "G", "R" and "A". The channel parsing code can be found in decodeheader. The buffer td->uncompresseddata is allocated in decodeblock based on the xsize, ysize and computed currentchannel_offset.

The function dwa_uncompress then assumes at [5] that if there are 4 channels, these are "B", "G", "R" and "A", and in the calculations at [6] and [7] that all channels are of the same type, which matches the type of the main color channels.

If we set the main color channels to a 4-byte type and add duplicate or unknown channels of the 2-byte EXRHALF type, then the addition at [7] will increment the pointer by 4-bytes * xsize * nbchannels, which will exceed the allocated buffer.

We recommend upgrading to version 8.0 or beyond.

Database specific

{
    "license": "CC-BY-4.0",
    "sources": [
        {
            "id": "CVE-2025-59733",
            "imported": "2026-06-26T19:19:20.010Z",
            "modified": "2026-06-17T09:46:36.783Z",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2025-59733",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2025-59733",
            "published": "2025-10-06T08:15:35.080Z",
            "database_specific": {
                "status": "Deferred"
            }
        },
        {
            "id": "GHSA-hpfq-c235-5854",
            "modified": "2025-10-19T15:31:16Z",
            "html_url": "https://github.com/advisories/GHSA-hpfq-c235-5854",
            "url": "https://api.github.com/advisories/GHSA-hpfq-c235-5854",
            "imported": "2026-06-26T19:19:11.795Z",
            "published": "2025-10-06T09:30:20Z"
        },
        {
            "published": "2025-10-06T08:09:37Z",
            "modified": "2026-02-26T17:48:17Z",
            "html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-32183",
            "url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2025-32183",
            "id": "EUVD-2025-32183",
            "imported": "2026-06-26T19:19:09.561Z"
        }
    ]
}

References

Affected packages

Julia / FFMPEG_jll

Package

Name: FFMPEG_jll
Purl: pkg:julia/FFMPEG_jll?uuid=b22a6f82-2f65-5046-a5b2-351ab43fb4e5

Affected ranges

Type: SEMVER
Events: Introduced

7.1.1+0

Fixed

8.0.0+0

Database specific

source

"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-646.json"

Julia / FFplay_jll

Package

Name: FFplay_jll
Purl: pkg:julia/FFplay_jll?uuid=c4dce911-e170-5107-8314-c7bdc6785395

Affected ranges

Type: SEMVER
Events: Introduced

7.1.1+0

Fixed

8.1.2+0

Database specific

source

"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-646.json"