{"id":"GO-2025-4239","revision":"0a8d24d05ba9418da31f51d56d69868f","records":[{"revision":"0a8d24d05ba9418da31f51d56d69868f","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2025-4239","aliases":["CVE-2025-68113","GHSA-6gvq-jcmp-8959","PYSEC-2026-1115"],"title":"ALTCHA Proof-of-Work Vulnerable to Challenge Splicing and Replay in github.com/altcha-org/altcha-lib-go","description":"ALTCHA Proof-of-Work Vulnerable to Challenge Splicing and Replay in github.com/altcha-org/altcha-lib-go","state":0,"publishedAt":"2025-12-16T19:39:14+00:00","modifiedAt":"2026-07-07T17:56:08.3920273+00:00","affected":[{"ecosystem":"Go","name":"github.com/altcha-org/altcha-lib-go","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.0.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://github.com/altcha-org/altcha-lib/security/advisories/GHSA-6gvq-jcmp-8959","https://github.com/altcha-org/altcha-lib-go/commit/4a5610745ef79895a67bac858b2e4f291c2614b8","https://github.com/altcha-org/altcha-lib-ex/commit/09b2bad466ad0338a5b24245380950ea9918333e","https://github.com/altcha-org/altcha-lib-java/commit/69277651fdd6418ae10bf3a088901506f9c62114","https://github.com/altcha-org/altcha-lib-java/releases/tag/v1.3.0","https://github.com/altcha-org/altcha-lib-php/commit/9e9e70c864a9db960d071c77c778be0c9ff1a4d0","https://github.com/altcha-org/altcha-lib-php/releases/tag/v1.3.1","https://github.com/altcha-org/altcha-lib-rb/commit/4fd7b64cbbfc713f3ca4e066c2dd466e3b8d359b","https://github.com/altcha-org/altcha-lib/commit/cb95d83a8d08e273b6be15e48988e7eaf60d5c08","https://github.com/altcha-org/altcha-lib/releases/tag/1.4.1"],"sourceUrl":"https://osv.dev/vulnerability/GO-2025-4239","license":"OSV · upstream source license applies","key":"osv:GO-2025-4239","identifiers":["GO-2025-4239","CVE-2025-68113","GHSA-6gvq-jcmp-8959","PYSEC-2026-1115"]},"retained":false,"historicalAffected":[]}],"coverage":[]}