CVE-2026-44714

HIGH EPSS 18.5%
Published May 15, 20261mo ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published May 15, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
18.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-347

References 3

  • github.com https://github.com/bitcoinj/bitcoinj/commit/2bc5653c41d260d840692bc554690d4d79208f9c
  • github.com https://github.com/bitcoinj/bitcoinj/commit/b575a682acf614b9ff95cacbdeb48f86c3ababe0
  • github.com https://github.com/bitcoinj/bitcoinj/security/advisories/GHSA-hfcf-v2f8-x9pc

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.