CVE-2026-52491

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Source
https://cve.org/CVERecord?id=CVE-2026-52491
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-52491.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-52491
Downstream
Published
2026-08-25T00:00:00Z
Modified
2026-08-27T19:14:09.100266Z
Summary
[none]
Details

An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arbitrary code via the libtiff/tools/thumbnail.c: main() component

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52491.json",
    "cna_assigner": "mitre"
}
References

Affected packages

Git / gitlab.com/libtiff/libtiff

Affected ranges

Type
GIT
Repo
https://gitlab.com/libtiff/libtiff
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
9ce4d089bcf25496663776d9e6336738112f09a3
Database specific
Show details 
{
    "source": "REFERENCES"
}

Affected versions

v3.*
v3.5.3
v3.5.4
v3.5.5
v3.5.7
v3.6.0
v3.6.0beta2
v3.6.1
v3.7.0
v3.7.0alpha
v3.7.0beta
v3.7.0beta2
v3.7.1
v3.7.2
v3.7.3
v3.7.4
v3.8.0
v3.8.1
v3.8.2
v4.*
v4.0.0
v4.0.0alpha
v4.0.0alpha4
v4.0.0alpha5
v4.0.0alpha6
v4.0.0beta7
v4.0.1
v4.0.10
v4.0.2
v4.0.3
v4.0.4
v4.0.4beta
v4.0.5
v4.0.6
v4.0.7
v4.0.8
v4.0.9
v4.1.0
v4.2.0
v4.3.0
v4.3.0rc1
v4.4.0
v4.4.0rc1
v4.5.0
v4.5.0rc2
v4.5.0rc3
v4.5.1
v4.5.1rc1
v4.5.1rc2
v4.5.1rc3
v4.6.0rc1
v4.7.0
v4.7.0rc1
v4.7.0rc2
v4.7.1
v4.7.1rc1

Database specific

vanir_signatures 
[
    {
        "id": "CVE-2026-52491-5f3683eb",
        "target": {
            "file": "tools/thumbnail.c"
        },
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "321847031254240673946123491396191512489",
                "19244761794721123692628131606794889392",
                "181973358953000563359092320916517291376",
                "328070497374035677155969109624473263563"
            ]
        },
        "signature_version": "v1",
        "source": "https://gitlab.com/libtiff/libtiff@9ce4d089bcf25496663776d9e6336738112f09a3",
        "signature_type": "Line"
    },
    {
        "id": "CVE-2026-52491-8130d5f6",
        "target": {
            "function": "main",
            "file": "tools/thumbnail.c"
        },
        "deprecated": false,
        "digest": {
            "function_hash": "247030284023708126795970021088442129381",
            "length": 1349.0
        },
        "signature_version": "v1",
        "source": "https://gitlab.com/libtiff/libtiff@9ce4d089bcf25496663776d9e6336738112f09a3",
        "signature_type": "Function"
    }
]
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-52491.json"
vanir_signatures_modified 
"2026-08-27T19:14:09Z"