CVE-2026-112405

Pillow is a Python imaging library. From 12.0.0 until 13.0.0, Pillow's Image.merge() can dereference a null image8 plane. Validation skips the first input band, allowing a 32-bit integer or floating-point image backed by image32 storage to be merged as a narrower multiband image. A crafted IPTC file can reach this path when an application opens and loads it, or a caller can invoke Image.merge() directly with such a first band. This causes a native process crash. This issue is fixed in version 13.0.0.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-476"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112405.json"
}

References

Affected packages

Git / github.com/python-pillow/pillow

Affected ranges

Type

GIT

Repo

https://github.com/python-pillow/pillow

Events

Introduced

693df7b42c666f88c719f9973be0ad71607328e0

Fixed

293218ad059d994baf1777d882911bed6a49704a

Fixed

b6ee66e8b2c2c0932bdf65f963268d9f2927ef86

Database specific

Show details

{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "12.0.0"
                },
                {
                    "fixed": "13.0.0"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "range": [
                {
                    "fixed": "b6ee66e8b2c2c0932bdf65f963268d9f2927ef86"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "13.0.0",
            "range": [
                {
                    "fixed": "293218ad059d994baf1777d882911bed6a49704a"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

12.*

12.0.0

12.1.0

12.2.0

12.3.0

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-112405.json"

vanir_signatures

[
    {
        "deprecated": false,
        "digest": {
            "function_hash": "193459129178121911948828196224834832575",
            "length": 2041
        },
        "id": "CVE-2026-112405-e32d4a67",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/python-pillow/pillow/commit/b6ee66e8b2c2c0932bdf65f963268d9f2927ef86",
        "target": {
            "file": "src/libImaging/Bands.c",
            "function": "ImagingMerge"
        }
    },
    {
        "deprecated": false,
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            "threshold": 0.9
        },
        "id": "CVE-2026-112405-f9c12e6d",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/python-pillow/pillow/commit/b6ee66e8b2c2c0932bdf65f963268d9f2927ef86",
        "target": {
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]

vanir_signatures_modified

"2026-10-29T07:06:34Z"