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CVE-2026-44714

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 bitcoin
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2d6d32920b9f310fcf2721563f61173acfba5c8a431bc85c19a6f72dc481aec6
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"bitcoinj","vendor":"bitcoinj","versions":[{"status":"affected","version":"< 0.17.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d1027f0bf5bfa27fff720f7970bd65216a9c490ae759f4edf80229ba12ccc54c · sha256:a7f0eed3b8424243… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d1027f0bf5bfa27fff720f7970bd65216a9c490ae759f4edf80229ba12ccc54c · sha256:a7f0eed3b8424243… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-347","description":"CWE-347: Improper Verification of Cryptographic Signature","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d1027f0bf5bfa27fff720f7970bd65216a9c490ae759f4edf80229ba12ccc54c · sha256:a7f0eed3b8424243… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/bitcoinj/bitcoinj/commit/2bc5653c41d260d840692bc554690d4d79208f9c","tags":["x_refsource_MISC"],"url":"https://github.com/bitcoinj/bitcoinj/commit/2bc5653c41d260d840692bc554690d4d79208f9c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d1027f0bf5bfa27fff720f7970bd65216a9c490ae759f4edf80229ba12ccc54c · sha256:a7f0eed3b8424243… · /containers/cna/references/1
{"name":"https://github.com/bitcoinj/bitcoinj/commit/b575a682acf614b9ff95cacbdeb48f86c3ababe0","tags":["x_refsource_MISC"],"url":"https://github.com/bitcoinj/bitcoinj/commit/b575a682acf614b9ff95cacbdeb48f86c3ababe0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d1027f0bf5bfa27fff720f7970bd65216a9c490ae759f4edf80229ba12ccc54c · sha256:a7f0eed3b8424243… · /containers/cna/references/2
{"name":"https://github.com/bitcoinj/bitcoinj/security/advisories/GHSA-hfcf-v2f8-x9pc","tags":["x_refsource_CONFIRM"],"url":"https://github.com/bitcoinj/bitcoinj/security/advisories/GHSA-hfcf-v2f8-x9pc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d1027f0bf5bfa27fff720f7970bd65216a9c490ae759f4edf80229ba12ccc54c · sha256:a7f0eed3b8424243… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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