{"id":"CVE-2026-17434","aliases":["EUVD-2026-49049","GHSA-m5r3-634q-m3rj"],"status":"published","title":"nanocoai NanoClaw add_mcp_server request.ts handleAddMcpServer improper authorization","description":"A flaw has been found in nanocoai NanoClaw up to 2.0.64. Affected is the function handleAddMcpServer of the file src/modules/self-mod/request.ts of the component add_mcp_server. Executing a manipulation can lead to improper authorization. The attack may be launched remotely. The exploit has been published and may be used. This patch is called e5b928783d5c485637565eb07d2967922dfbf8d8. A patch should be applied to remediate this issue.","severity":{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00374,"percentile":0.317,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-266","CWE-285"],"published":"2026-07-26T03:00:16Z","modified":"2026-10-28T02:30:44Z","products":[{"vendor":"nanocoai","product":"nanoclaw"},{"vendor":"qwibit","product":"nanoclaw"}],"references":[{"url":"https://vuldb.com/vuln/383075","tags":["vdb-entry","technical-description","advisory"]},{"url":"https://vuldb.com/vuln/383075/cti","tags":["signature","permissions-required","report"]},{"url":"https://vuldb.com/cve/CVE-2026-17434","tags":["third-party-advisory","advisory"]},{"url":"https://vuldb.com/submit/862451","tags":["third-party-advisory","advisory"]},{"url":"https://github.com/nanocoai/nanoclaw/issues/2762","tags":["exploit","issue-tracking","report"]},{"url":"https://github.com/nanocoai/nanoclaw/pull/2998","tags":["issue-tracking","patch","fix"]},{"url":"https://github.com/nanocoai/nanoclaw/commit/e5b928783d5c485637565eb07d2967922dfbf8d8","tags":["patch","fix"]},{"url":"https://github.com/nanocoai/nanoclaw/","tags":["product","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-17434","tags":["advisory"]},{"url":"https://github.com/nanocoai/nanoclaw"},{"url":"https://github.com/advisories/GHSA-m5r3-634q-m3rj"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/17xxx/CVE-2026-17434.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-17434","title":"nanocoai NanoClaw add_mcp_server request.ts handleAddMcpServer improper authorization","description":"A flaw has been found in nanocoai NanoClaw up to 2.0.64. Affected is the function handleAddMcpServer of the file src/modules/self-mod/request.ts of the component add_mcp_server. Executing a manipulation can lead to improper authorization. The attack may be launched remotely. The exploit has been published and may be used. This patch is called e5b928783d5c485637565eb07d2967922dfbf8d8. A patch should be applied to remediate this issue.","status":"published","published":"2026-07-26T03:00:16.981Z","modified":"2026-07-27T14:37:23.201Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","level":"medium","assessor":"cna"},{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C","level":"medium","assessor":"cna"},{"version":"3.0","score":6.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C","level":"medium","assessor":"cna"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C","assessor":"cna"}],"cwes":["CWE-285","CWE-266"],"updated_at":"2026-11-02T14:19:54.84674Z"}],"euvd":[{"id":"EUVD-2026-49049","description":"A flaw has been found in nanocoai NanoClaw up to 2.0.64. Affected is the function handleAddMcpServer of the file src/modules/self-mod/request.ts of the component add_mcp_server. Executing a manipulation can lead to improper authorization. The attack may be launched remotely. The exploit has been published and may be used. This patch is called e5b928783d5c485637565eb07d2967922dfbf8d8. A patch should be applied to remediate this issue.","status":"published","published":"2026-07-26T03:00:16Z","modified":"2026-07-27T14:37:23Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","level":"medium"}],"updated_at":"2026-11-02T18:19:37.322622Z"}],"ghsa":[{"id":"GHSA-m5r3-634q-m3rj","title":"A flaw has been found in nanocoai NanoClaw up to 2.0.64. Affected is the function...","description":"A flaw has been found in nanocoai NanoClaw up to 2.0.64. Affected is the function handleAddMcpServer of the file src/modules/self-mod/request.ts of the component add_mcp_server. Executing a manipulation can lead to improper authorization. The attack may be launched remotely. The exploit has been published and may be used. This patch is called e5b928783d5c485637565eb07d2967922dfbf8d8. A patch should be applied to remediate this issue.","status":"published","published":"2026-07-26T06:31:26Z","modified":"2026-07-26T06:31:31Z","cvss":[{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low"},{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"cwes":["CWE-266"],"updated_at":"2026-11-02T15:09:49.369416Z"}],"nvd":[{"id":"CVE-2026-17434","description":"A flaw has been found in nanocoai NanoClaw up to 2.0.64. Affected is the function handleAddMcpServer of the file src/modules/self-mod/request.ts of the component add_mcp_server. Executing a manipulation can lead to improper authorization. The attack may be launched remotely. The exploit has been published and may be used. This patch is called e5b928783d5c485637565eb07d2967922dfbf8d8. A patch should be applied to remediate this issue.","status":"published","published":"2026-07-26T04:16:46.573Z","modified":"2026-10-24T13:10:00.147Z","cvss":[{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low","assessor":"secondary"},{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"secondary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"secondary"}],"cwes":["CWE-266","CWE-285"],"updated_at":"2026-11-02T14:12:32.830533Z"}],"osv":[{"id":"CVE-2026-17434","title":"nanocoai NanoClaw add_mcp_server request.ts handleAddMcpServer improper authorization","description":"A flaw has been found in nanocoai NanoClaw up to 2.0.64. Affected is the function handleAddMcpServer of the file src/modules/self-mod/request.ts of the component add_mcp_server. Executing a manipulation can lead to improper authorization. The attack may be launched remotely. The exploit has been published and may be used. This patch is called e5b928783d5c485637565eb07d2967922dfbf8d8. A patch should be applied to remediate this issue.","status":"published","published":"2026-07-26T03:00:16.981Z","modified":"2026-10-28T02:30:44.151970473Z","cvss":[{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","level":"low"}],"cwes":["CWE-266","CWE-285"],"updated_at":"2026-11-02T15:44:57.682091Z"}]}}