CVE-2026-112891

Pillow is a Python imaging library. From 9.2.0 until 13.0.0, Pillow performs quadratic copying when saving a GIF with a long comment. _get_global_header() repeatedly copies portions of comment data while assembling the global header, including comments retained from an untrusted input image. An attacker can supply an image with a large GIF comment to an application that saves it as GIF. This can consume excessive CPU and delay or deny service. This issue is fixed in version 13.0.0.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-407"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112891.json"
}

References

Affected packages

Git / github.com/python-pillow/pillow

Affected ranges

Type

GIT

Repo

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

Events

Introduced

58acec3312fb8671c9d84829197e1c8150085589

Fixed

293218ad059d994baf1777d882911bed6a49704a

Fixed

68a3fe957d8a4d552e8c69d96066d749f0614c7e

Database specific

Show details

{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "9.2.0"
                },
                {
                    "fixed": "13.0.0"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "range": [
                {
                    "fixed": "68a3fe957d8a4d552e8c69d96066d749f0614c7e"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "13.0.0",
            "range": [
                {
                    "fixed": "293218ad059d994baf1777d882911bed6a49704a"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

10.*

10.0.0

10.1.0

10.2.0

10.3.0

10.4.0

11.*

11.0.0

11.1.0

11.2.1

11.3.0

12.*

12.0.0

12.1.0

12.2.0

12.3.0

9.*

9.2.0

9.3.0

9.4.0

9.5.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-112891.json"