{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90808","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","state":"PUBLISHED","assignerShortName":"VulDB","dateReserved":"2026-09-13T16:10:33.299Z","datePublished":"2026-09-14T18:00:10.882Z","dateUpdated":"2026-09-14T19:13:22.152Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB","dateUpdated":"2026-09-14T18:00:10.882Z"},"title":"HKUDS nanobot ExecTool shell.py ExecTool._spawn incomplete blacklist","problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-184","lang":"en","description":"Incomplete Blacklist"}]},{"descriptions":[{"type":"CWE","cweId":"CWE-183","lang":"en","description":"Permissive List of Allowed Inputs"}]}],"affected":[{"vendor":"HKUDS","product":"nanobot","versions":[{"version":"0.2.0","status":"affected"},{"version":"0.2.1","status":"affected"}],"cpes":["cpe:2.3:a:nanobot:nanobot:*:*:*:*:*:*:*:*"],"modules":["ExecTool"]}],"descriptions":[{"lang":"en","value":"A vulnerability was determined in HKUDS nanobot up to 0.2.1. Impacted is the function ExecTool._guard_command/ExecTool._spawn of the file nanobot/agent/tools/shell.py of the component ExecTool. This manipulation causes incomplete blacklist. It is possible to initiate the attack remotely. Patch name: af582246f141311d574551b7571a517bcc3df750. Applying a patch is the recommended action to fix this issue."}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":5.3,"vectorString":"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:X","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":6.3,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C","baseSeverity":"MEDIUM"}},{"cvssV3_0":{"version":"3.0","baseScore":6.3,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":6.5,"vectorString":"AV:N/AC:L/Au:S/C:P/I:P/A:P/E:ND/RL:OF/RC:C"}}],"timeline":[{"time":"2026-09-13T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-09-13T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-09-13T18:16:30.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"Eric-a (VulDB User)","type":"reporter"}],"references":[{"url":"https://vuldb.com/vuln/403310","name":"VDB-403310 | HKUDS nanobot ExecTool shell.py ExecTool._spawn incomplete blacklist","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/403310/cti","name":"VDB-403310 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-90808","name":"CVE-2026-90808 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/922849","name":"Submit #922849 | HKUDS nanobot <= 0.2.1 Incomplete List of Disallowed Inputs (CWE-184)","tags":["third-party-advisory"]},{"url":"https://github.com/HKUDS/nanobot/issues/5305","tags":["issue-tracking"]},{"url":"https://github.com/HKUDS/nanobot/pull/5345","tags":["issue-tracking","patch"]},{"url":"https://github.com/HKUDS/nanobot/commit/af582246f141311d574551b7571a517bcc3df750","tags":["patch"]},{"url":"https://github.com/HKUDS/nanobot/","tags":["product"]}],"tags":["x_open-source"],"x_generator":["VulDB PVTS v202609"]},"adp":[{"references":[{"url":"https://github.com/HKUDS/nanobot/issues/5305","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-14T19:12:46.427617Z","id":"CVE-2026-90808","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-14T19:13:22.152Z"}}]}}