CVE-2026-62292

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-62292
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-62292.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-62292
Aliases
  • GHSA-73p7-m7gg-w2jv
Downstream
Related
Published
2026-08-18T21:20:24Z
Modified
2026-09-11T08:36:37Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
libheif: Out-of-bounds read in uncompressed unci tile range slicing
Details

libheif is a HEIF and AVIF file format decoder and encoder. From 1.19.0 until 1.23.1, a crafted uncompressed HEIF image using generic zlib unci full-item compression can crash an application that decodes an advertised tile with heif_image_handle_decode_image_tile(). In libheif/codecs/uncompressed/unc_decoder.cc, unc_decoder::fetch_tile_data() computes a large tile offset and unc_decoder::get_compressed_image_data_uncompressed() validates it with range_start_offset plus range_size. For the last advertised tile (4095, 4095), the addition can wrap to zero, bypass the bounds check, and pass an invalid source pointer and a one-terabyte length to memcpy. The observed result is an out-of-bounds read and process crash; opening the file alone does not trigger the issue because tile decoding is required. This issue is fixed in version 1.23.1.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-125"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62292.json"
}
References

Affected packages

Git / github.com/strukturag/libheif

Affected ranges

Type
GIT
Repo
https://github.com/strukturag/libheif
Events
Introduced
c4e4657dcf6bcc06e934632f97736f7c78dbff9e
Fixed
089a809bf6bed1abae102d5e97b6bb8c4f53b515
Fixed
2c4bbb54c2738d4a5efbbe3e5fa1d5d76bb88eb0
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "1.19.0"
        },
        {
            "fixed": "1.23.1"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v1.*
v1.19.0
v1.19.1
v1.19.2
v1.19.3
v1.19.4
v1.19.5
v1.20.0
v1.20.1
v1.21.0
v1.21.1
v1.21.2
v1.22.0
v1.22.1
v1.22.2
v1.23.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-62292.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "314912376354515041452152808763086655271",
                "43761784047124038306761265150067557578",
                "19839146406464879342927444315999329524",
                "280614601139895828286494313771936772299"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-62292-58b20ea4",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/strukturag/libheif/commit/089a809bf6bed1abae102d5e97b6bb8c4f53b515",
        "target": {
            "file": "libheif/codecs/uncompressed/unc_decoder.cc"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "42233311125132095353969197460884581974",
            "length": 2676
        },
        "id": "CVE-2026-62292-9b69073b",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/strukturag/libheif/commit/089a809bf6bed1abae102d5e97b6bb8c4f53b515",
        "target": {
            "file": "libheif/codecs/uncompressed/unc_decoder.cc",
            "function": "unc_decoder::get_compressed_image_data_uncompressed"
        }
    }
]
vanir_signatures_modified 
"2026-09-11T08:36:37Z"