JLSEC-2026-156

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Source

https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-156.md

Import Source

https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-156.json

JSON Data

https://api.test.osv.dev/v1/vulns/JLSEC-2026-156

Upstream

CVE-2025-68431

EUVD-2025-205646

Published

2026-04-20T18:41:44.911Z

Modified

2026-04-20T18:45:06.252510Z

Severity

6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator

Summary

[none]

Details

libheif is an HEIF and AVIF file format decoder and encoder. Prior to version 1.21.0, a crafted HEIF that exercises the overlay image item path triggers a heap buffer over-read in HeifPixelImage::overlay(). The function computes a negative row length (likely from an unclipped overlay rectangle or invalid offsets), which then underflows when converted to size_t and is passed to memcpy, causing a very large read past the end of the source plane and a crash. Version 1.21.0 contains a patch. As a workaround, avoid decoding images using iovl overlay boxes.

Database specific

{
    "sources": [
        {
            "imported": "2026-04-20T18:31:44.643Z",
            "database_specific": {
                "status": "Analyzed"
            },
            "modified": "2026-02-25T14:53:34.747Z",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68431",
            "id": "CVE-2025-68431",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2025-68431",
            "published": "2025-12-29T19:15:56.933Z"
        },
        {
            "imported": "2026-04-20T18:31:46.459Z",
            "id": "EUVD-2025-205646",
            "modified": "2025-12-30T22:26:20Z",
            "html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-205646",
            "url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2025-205646",
            "published": "2025-12-29T19:09:54Z"
        }
    ],
    "license": "CC-BY-4.0"
}

References

Affected packages

Julia / libheif_jll

Package

Name: libheif_jll
Purl: pkg:julia/libheif_jll?uuid=a13778fd-9a17-58b4-b5a0-4b4a242815a9

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.21.2000+0

Database specific

source

"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-156.json"