{"id":"CVE-2019-16761","aliases":["EUVD-2019-0765","GHSA-wmx6-vxcf-c3gr"],"status":"published","title":"Validator parsing discrepancy due to string encoding in NPM slp-validate 1.0.0","description":"A specially crafted Bitcoin script can cause a discrepancy between the specified SLP consensus rules and the validation result of the slp-validate@1.0.0 npm package. An attacker could create a specially crafted Bitcoin script in order to cause a hard-fork from the SLP consensus. All versions \u003e1.0.0 have been patched.","severity":{"version":"3.1","score":5.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00993,"percentile":0.63019,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2019-11-15T23:05:57Z","modified":"2026-10-20T10:47:34Z","fixes":[{"ecosystem":"npm","package":"slp-validate","fixed_in":["1.0.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"slp-validate","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0.0"},{"last_affected":"1.0.0"},{"fixed":"1.0.1"}]}],"versions":["1.0.0"]},{"source":"osv","ecosystem":"npm","package":"slp-validate","ranges":[{"type":"SEMVER","events":[{"introduced":"1.0.0"},{"fixed":"1.0.1"}]}],"versions":["1.0.0"]}],"products":[{"vendor":"simpleledger","product":"slp-validate"}],"references":[{"url":"https://github.com/simpleledger/slp-validate/security/advisories/GHSA-wmx6-vxcf-c3gr","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://github.com/simpleledger/slp-validate/commit/50ad96c2798dad6b9f9a13333dd05232defe5730#diff-fe58606994c412ba56a65141a7aa4a62L123","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-16761","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-wmx6-vxcf-c3gr","tags":["advisory"]},{"url":"https://www.npmjs.com/advisories/1422","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2019-16761","title":"Validator parsing discrepancy due to string encoding in NPM slp-validate 1.0.0","description":"A specially crafted Bitcoin script can cause a discrepancy between the specified SLP consensus rules and the validation result of the slp-validate@1.0.0 npm package. An attacker could create a specially crafted Bitcoin script in order to cause a hard-fork from the SLP consensus. All versions \u003e1.0.0 have been patched.","status":"published","published":"2019-11-15T23:05:57Z","modified":"2024-08-05T01:24:48.496Z","cvss":[{"version":"3.1","score":5.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:32:23.485011Z"}],"euvd":[{"id":"EUVD-2019-0765","description":"A specially crafted Bitcoin script can cause a discrepancy between the specified SLP consensus rules and the validation result of the slp-validate@1.0.0 npm package. An attacker could create a specially crafted Bitcoin script in order to cause a hard-fork from the SLP consensus. All versions \u003e1.0.0 have been patched.","status":"published","published":"2019-11-15T23:05:57Z","modified":"2024-08-05T01:24:48Z","cvss":[{"version":"3.1","score":5.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:H","level":"medium"}],"updated_at":"2026-11-03T02:40:31.903592Z"}],"ghsa":[{"id":"GHSA-wmx6-vxcf-c3gr","title":"Validation Bypass in slp-validate","description":"Versions of `slp-validate` prior to 1.0.1 are vulnerable to a validation bypass. Bitcoin scripts may cause the validation result from `slp-validate` to differ from the specified SLP consensus. This allows an attacker to create a Bitcoin script that causes a hard-fork from the SLP consensus.\n\n\n## Recommendation\n\nUpgrade to version 1.0.1 or later.","status":"published","published":"2019-11-15T23:10:19Z","modified":"2023-01-09T05:02:26Z","cvss":[{"version":"3.1","score":5.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:H","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:36:03.040255Z"}],"nvd":[{"id":"CVE-2019-16761","description":"A specially crafted Bitcoin script can cause a discrepancy between the specified SLP consensus rules and the validation result of the slp-validate@1.0.0 npm package. An attacker could create a specially crafted Bitcoin script in order to cause a hard-fork from the SLP consensus. All versions \u003e1.0.0 have been patched.","status":"published","published":"2019-11-15T23:15:11.317Z","modified":"2026-06-17T02:22:44.767Z","cvss":[{"version":"3.1","score":5.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.9,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:05:37.024431Z"}],"osv":[{"id":"CVE-2019-16761","description":"A specially crafted Bitcoin script can cause a discrepancy between the specified SLP consensus rules and the validation result of the slp-validate@1.0.0 npm package. An attacker could create a specially crafted Bitcoin script in order to cause a hard-fork from the SLP consensus. All versions \u003e1.0.0 have been patched.","status":"published","published":"2019-11-15T23:15:11.317Z","modified":"2026-10-20T10:47:34.548123201Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:11.673963Z"},{"id":"GHSA-wmx6-vxcf-c3gr","title":"Validation Bypass in slp-validate","description":"Versions of `slp-validate` prior to 1.0.1 are vulnerable to a validation bypass. Bitcoin scripts may cause the validation result from `slp-validate` to differ from the specified SLP consensus. This allows an attacker to create a Bitcoin script that causes a hard-fork from the SLP consensus.\n\n\n## Recommendation\n\nUpgrade to version 1.0.1 or later.","status":"published","published":"2019-11-15T23:10:19Z","modified":"2026-07-08T06:00:33.350746271Z","cvss":[{"version":"3.1","score":5.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:H","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T15:46:58.767335Z"}]}}