{"vulnerability": "CVE-2026-58057", "sightings": [{"uuid": "3d8b6e08-860f-41c4-8fca-9cb35378fe4d", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-58057", "type": "seen", "source": "https://bsky.app/profile/cve.skyfleet.blue/post/3mpdbwfoarl2c", "content": "CVE-2026-58057 - Flowise - Custom MCP Environment Variable Denylist Bypass via Case Sensitivity\nCVE ID : CVE-2026-58057\n \n Published : June 28, 2026, 1:32 a.m. | 4\u00a0hours, 12\u00a0minutes ago\n \n Description : Flowise before 3.1.3 validates Custom MCP stdio environment variables agai...", "creation_timestamp": "2026-06-28T05:54:15.101805Z"}, {"uuid": "7e659fa0-5b26-4aef-b178-3ccc38b098a9", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-58057", "type": "seen", "source": "https://bsky.app/profile/kriptabiz.bsky.social/post/3mpgqoelxxl2n", "content": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c CVE-2026-58057 \u0432 Flowise: \u0443\u0433\u0440\u043e\u0437\u0430 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0438 \u0441\u043f\u043e\u0441\u043e\u0431\u044b \u0437\u0430\u0449\u0438\u0442\u044b\n\n\n\nhttps://kripta.biz/posts/20E23FB0-206B-44F2-B307-404ED70166BB", "creation_timestamp": "2026-06-29T14:56:10.605485Z"}, {"uuid": "cb571a6a-c92f-480c-92e4-4645b22de818", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-58057", "type": "seen", "source": "https://bsky.app/profile/kriptabiz.bsky.social/post/3mphhnkdcue23", "content": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c CVE-2026-58057 \u0432 Flowise: \u0443\u0433\u0440\u043e\u0437\u0430 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0438 \u0441\u043f\u043e\u0441\u043e\u0431\u044b \u0437\u0430\u0449\u0438\u0442\u044b\n\n\n\nhttps://kripta.biz/posts/29AD7D16-9991-402E-AE03-A13F510CFFB1", "creation_timestamp": "2026-06-29T21:47:19.343172Z"}, {"uuid": "c4ce9cc1-e92c-4f01-a9a6-917aa18bff34", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-58057", "type": "seen", "source": "https://t.me/GithubRedTeam/94858", "content": "\ud83d\udea8 GitHub \u76d1\u63a7\u6d88\u606f\u63d0\u9192\n\n\ud83d\udea8 \u53d1\u73b0\u5173\u952e\u8bcd\uff1a #CVE-2026 #Exploit #RCE\n\n\ud83d\udce6 \u9879\u76ee\u540d\u79f0\uff1a Flowise-CVE-2026-58057-exploit\n\ud83d\udc64 \u9879\u76ee\u4f5c\u8005\uff1a CerberusMrXi\n\ud83d\udee0 \u5f00\u53d1\u8bed\u8a00\uff1a Python\n\u2b50 Star\u6570\u91cf\uff1a 0  |  \ud83c\udf74 Fork\u6570\u91cf\uff1a 0\n\ud83d\udcc5 \u66f4\u65b0\u65f6\u95f4\uff1a 2026-07-23 18:28:58\n\n\ud83d\udcdd \u9879\u76ee\u63cf\u8ff0\uff1a\nFlowise Windows RCE exploit for CVE-2026-58057. Bypasses environment variable validation via case-sensitive flaw. Uses node_options to inject arbitrary code through MCP stdio. Supports reverse shell, persistence, file upload, credential dumping. For authorized security testing only.\n\n\ud83d\udd17 \u70b9\u51fb\u8bbf\u95ee\u9879\u76ee\u5730\u5740", "creation_timestamp": "2026-07-23T21:00:03.846084Z"}, {"uuid": "11ba5fc9-9320-4410-afe6-0d62219cab8a", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-58057", "type": "seen", "source": "Telegram/3IdoSx-1lpc2iHoFvsp2wYXyVxuQva2z_1gsDIpvcW15f6s", "content": "", "creation_timestamp": "2026-07-23T23:00:03.250857Z"}, {"uuid": "35cba21c-264f-40b3-b1b8-8e853e035dc5", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-58057", "type": "seen", "source": "Telegram/3IdoSx-1lpc2iHoFvsp2wYXyVxuQva2z_1gsDIpvcW15f6s", "content": "", "creation_timestamp": "2026-07-24T00:00:07.516159Z"}, {"uuid": "7d3bbe15-8db6-450f-8dc4-cf6c96796243", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-58057", "type": "published-proof-of-concept", "source": "https://t.me/GithubRedTeam/94858", "content": "\ud83d\udea8 GitHub \u76d1\u63a7\u6d88\u606f\u63d0\u9192\n\n\ud83d\udea8 \u53d1\u73b0\u5173\u952e\u8bcd\uff1a #CVE-2026 #Exploit #RCE\n\n\ud83d\udce6 \u9879\u76ee\u540d\u79f0\uff1a Flowise-CVE-2026-58057-exploit\n\ud83d\udc64 \u9879\u76ee\u4f5c\u8005\uff1a CerberusMrXi\n\ud83d\udee0 \u5f00\u53d1\u8bed\u8a00\uff1a Python\n\u2b50 Star\u6570\u91cf\uff1a 0  |  \ud83c\udf74 Fork\u6570\u91cf\uff1a 0\n\ud83d\udcc5 \u66f4\u65b0\u65f6\u95f4\uff1a 2026-07-23 18:28:58\n\n\ud83d\udcdd \u9879\u76ee\u63cf\u8ff0\uff1a\nFlowise Windows RCE exploit for CVE-2026-58057. Bypasses environment variable validation via case-sensitive flaw. Uses node_options to inject arbitrary code through MCP stdio. Supports reverse shell, persistence, file upload, credential dumping. For authorized security testing only.\n\n\ud83d\udd17 \u70b9\u51fb\u8bbf\u95ee\u9879\u76ee\u5730\u5740", "creation_timestamp": "2026-07-24T00:00:07.877083Z"}]}