CVE-2026-44714

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Source

https://cve.org/CVERecord?id=CVE-2026-44714

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44714.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-44714

Aliases

GHSA-hfcf-v2f8-x9pc

Published

2026-05-15T16:51:11Z

Modified

2026-08-12T16:24:31Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator

Summary

bitcoinj: ScriptExecution P2PKH/P2WPKH Verification Bypass

Details

The bitcoinj library is a Java implementation of the Bitcoin protocol. Prior to 0.17.1, ScriptExecution.correctlySpends() contains two fast-path verification bugs for standard P2PKH and native P2WPKH spends in core/src/main/java/org/bitcoinj/script/ScriptExecution.java. In both branches, bitcoinj verifies an attacker-controlled signature/public-key pair but fails to verify that the public key is the one committed to by the output being spent. As a result, any attacker keypair can satisfy bitcoinj's local verification for arbitrary P2PKH and P2WPKH outputs. This vulnerability is fixed in 0.17.1.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-347"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44714.json"
}

References

Affected packages

Git / github.com/bitcoinj/bitcoinj

Affected ranges

Type

GIT

Repo

https://github.com/bitcoinj/bitcoinj

Events

Introduced

Fixed

2bc5653c41d260d840692bc554690d4d79208f9c

Fixed

b575a682acf614b9ff95cacbdeb48f86c3ababe0

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.17.1"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v0.*

v0.12

v0.17

v0.17-alpha1

v0.17-alpha2

v0.17-alpha3

v0.17-alpha4

v0.17-alpha5

v0.17-beta1

v0.17-rc1

v0.17-rc2

v0.17-rc3

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44714.json"

vanir_signatures

[
    {
        "deprecated": false,
        "digest": {
            "function_hash": "39900161820317487851101723785753550443",
            "length": 2306
        },
        "id": "CVE-2026-44714-1e365d7a",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/bitcoinj/bitcoinj/commit/2bc5653c41d260d840692bc554690d4d79208f9c",
        "target": {
            "file": "core/src/main/java/org/bitcoinj/script/Script.java",
            "function": "correctlySpends"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "303332190704442515315470807804730042049",
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                "130956810395504127626924438551933121853",
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                "1673385187995540108633609968041507047",
                "182757145045965442588139080808332538844",
                "162951168818722277105454470760952314590"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-44714-6bb3d545",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/bitcoinj/bitcoinj/commit/2bc5653c41d260d840692bc554690d4d79208f9c",
        "target": {
            "file": "core/src/main/java/org/bitcoinj/script/Script.java"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "119846702576506761938210708076982603411",
                "130956810395504127626924438551933121853",
                "213329950010208483980823344633078410702",
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                "305840271837182394996343801114040267632",
                "284756015475451643753143750574224998386"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-44714-7dcc06b4",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/bitcoinj/bitcoinj/commit/b575a682acf614b9ff95cacbdeb48f86c3ababe0",
        "target": {
            "file": "core/src/main/java/org/bitcoinj/script/ScriptExecution.java"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "229198277167788263206074202983575082729",
            "length": 2515
        },
        "id": "CVE-2026-44714-81609a78",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/bitcoinj/bitcoinj/commit/b575a682acf614b9ff95cacbdeb48f86c3ababe0",
        "target": {
            "file": "core/src/main/java/org/bitcoinj/script/ScriptExecution.java",
            "function": "correctlySpends"
        }
    }
]

vanir_signatures_modified

"2026-08-12T16:24:31Z"