{"vulnerability": "CVE-2026-41586", "sightings": [{"uuid": "3f260fff-89d3-491f-832a-290a2f23f4e4", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "86ecb4e1-bb32-44d5-9f39-8a4673af8385", "vulnerability": "CVE-2026-41586", "type": "published-proof-of-concept", "source": "https://api.github.com/repos/hyperledger/fabric/security-advisories/GHSA-prf8-cf2x-rhx7", "content": "", "creation_timestamp": "2026-04-22T12:54:53.000000Z"}, {"uuid": "598797cd-ffaf-46c1-8c26-ad32dc0a0e6f", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "cve-2026-41586", "type": "seen", "source": "https://infosec.exchange/users/offseq/statuses/116531765463939298", "content": "\ud83d\udea8 CRITICAL: CVE-2026-41586 in Hyperledger Fabric (1.0.0-2.2.26) allows remote code execution via unsafe deserialization. No patch yet \u2014 restrict untrusted input and monitor for updates. https://radar.offseq.com/threat/cve-2026-41586-cwe-502-deserialization-of-untruste-354006dc #OffSeq #Vulnerability #Blockchain #CVE202641586", "creation_timestamp": "2026-05-07T06:00:29.600126Z"}, {"uuid": "a08c57cf-ecd4-40dd-a0a0-44e0f530921c", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "cve-2026-41586", "type": "seen", "source": "https://bsky.app/profile/offseq.bsky.social/post/3mlajzpsc3p2v", "content": "Hyperledger Fabric hit by CRITICAL deserialization flaw (CVE-2026-41586, v1.0.0-2.2.26). RCE possible. No fix yet \u2014 restrict access, monitor vendor for updates. https://radar.offseq.com/threat/cve-2026-41586-cwe-502-deserialization-of-untruste-354006dc #OffSeq #BlockchainSecurity #CVE202641586", "creation_timestamp": "2026-05-07T06:00:30.828348Z"}, {"uuid": "7d26758d-6efe-4803-84b0-cf2259172e20", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-41586", "type": "seen", "source": "https://bsky.app/profile/cve.skyfleet.blue/post/3mlawpviguk2e", "content": "CVE-2026-41586 - ObjectInputStream.readObject() without ObjectInputFilter in fabric-sdk-java allows Java deserialization RCE\nCVE ID : CVE-2026-41586\n \n Published : May 7, 2026, 6:16 a.m. | 2\u00a0hours, 8\u00a0minutes ago\n \n Description : Hyperledger Fabric is an enterprise-grade permis...", "creation_timestamp": "2026-05-07T09:47:39.586278Z"}, {"uuid": "dcdc6c98-5a3f-49bd-8065-030003200b50", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "86ecb4e1-bb32-44d5-9f39-8a4673af8385", "vulnerability": "CVE-2026-41586", "type": "published-proof-of-concept", "source": "https://github.com/hyperledger/fabric/security/advisories/GHSA-prf8-cf2x-rhx7", "content": "", "creation_timestamp": "2026-04-22T12:54:53.000000Z"}]}