CVE-2026-47709

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Source
https://cve.org/CVERecord?id=CVE-2026-47709
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47709.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-47709
Aliases
  • GHSA-4h72-vqgp-9376
Downstream
Related
Published
2026-07-21T21:31:14.724Z
Modified
2026-07-23T08:25:16.419734Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
libheif has a NULL pointer dereference in heif_image_handle_get_image_tiling for malformed unci image missing ispe
Details

libheif is a HEIF and AVIF file format decoder and encoder. Versions prior to 1.22.0 crashes in the public C API heif_image_handle_get_image_tiling() when a malformed uncompressed HEIF image item has an associated uncC property but no associated ispe property. In debug builds this trips the ispe && uncC assertion in ImageItem_uncompressed::get_heif_image_tiling(). In a release/NDEBUG ASan build, the same file causes a null pointer read at address 0xa8. Version 1.22.0 fixes the issue.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47709.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-476"
    ]
}
References

Affected packages

Git / github.com/strukturag/libheif

Affected ranges

Type
GIT
Repo
https://github.com/strukturag/libheif
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
0c81a846b7401dbdb7118afd0761057f21e43511
Database specific 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.22.0"
        }
    ]
}

Affected versions

v1.*
v1.1.0
v1.10.0
v1.11.0
v1.12.0
v1.13.0
v1.14.0
v1.14.1
v1.14.2
v1.15.0
v1.15.1
v1.15.2
v1.16.0
v1.16.1
v1.16.2
v1.17.0
v1.17.1
v1.17.2
v1.17.3
v1.17.4
v1.17.5
v1.17.6
v1.18.0
v1.18.0-rc1
v1.19.0
v1.19.1
v1.19.2
v1.19.3
v1.19.4
v1.19.5
v1.2.0
v1.20.0
v1.20.1
v1.21.0
v1.21.1
v1.21.2
v1.3.0
v1.3.1
v1.3.2
v1.7.0
v1.8.0
v1.9.0
v1.9.1

Database specific

vanir_signatures 
[
    {
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "175107675317900759648359576881034358256",
                "220432159010798240840908416937024023837",
                "268268967745545109707798594937166387611",
                "253707932335489477155115861206639265538",
                "199679408075604976163979654915891773303",
                "175107675317900759648359576881034358256",
                "220432159010798240840908416937024023837",
                "268268967745545109707798594937166387611",
                "286778284410146987248233194002847271266",
                "178248309108630471590778685235254536836"
            ]
        },
        "signature_version": "v1",
        "source": "https://github.com/strukturag/libheif/commit/0c81a846b7401dbdb7118afd0761057f21e43511",
        "signature_type": "Line",
        "target": {
            "file": "tests/uncompressed_box.cc"
        },
        "id": "CVE-2026-47709-91619f1d",
        "deprecated": false
    }
]
vanir_signatures_modified 
"2026-07-23T08:25:16Z"
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47709.json"