{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-18996","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","state":"PUBLISHED","assignerShortName":"VulDB","dateReserved":"2026-08-05T19:41:31.033Z","datePublished":"2026-08-06T04:15:09.618Z","dateUpdated":"2026-08-06T12:13:14.698Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB","dateUpdated":"2026-08-06T04:15:09.618Z"},"title":"cosmicstack-labs mercury-agent run_command permissions.ts PermissionManager.checkShellCommand privileges assignment","problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-266","lang":"en","description":"Incorrect Privilege Assignment"}]}],"affected":[{"vendor":"cosmicstack-labs","product":"mercury-agent","versions":[{"version":"1.1.0","status":"affected"},{"version":"1.1.1","status":"affected"},{"version":"1.1.2","status":"affected"},{"version":"1.1.3","status":"affected"},{"version":"1.1.4","status":"affected"},{"version":"1.1.5","status":"affected"},{"version":"1.1.6","status":"affected"},{"version":"1.1.7","status":"affected"},{"version":"1.1.8","status":"affected"},{"version":"1.1.9","status":"affected"},{"version":"1.1.10","status":"affected"},{"version":"1.1.11","status":"affected"},{"version":"1.1.12","status":"affected"}],"cpes":["cpe:2.3:a:cosmicstack-labs:mercury-agent:*:*:*:*:*:*:*:*"],"modules":["run_command Handler"]}],"descriptions":[{"lang":"en","value":"A vulnerability has been found in cosmicstack-labs mercury-agent up to 1.1.12. This vulnerability affects the function PermissionManager.checkShellCommand of the file src/capabilities/permissions.ts of the component run_command Handler. Such manipulation leads to incorrect privilege assignment. The attack may be performed from remote. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet."}],"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:P","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:P/RL:X/RC:R","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:P/RL:X/RC:R","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":6.5,"vectorString":"AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR"}}],"timeline":[{"time":"2026-08-05T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-08-05T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-08-05T21:46:38.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"ChenMarry (VulDB User)","type":"reporter"},{"lang":"en","value":"VulDB CNA Team","type":"coordinator"}],"references":[{"url":"https://vuldb.com/vuln/386379","name":"VDB-386379 | cosmicstack-labs mercury-agent run_command permissions.ts PermissionManager.checkShellCommand privileges assignment","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/386379/cti","name":"VDB-386379 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-18996","name":"CVE-2026-18996 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/862625","name":"Submit #862625 | cosmicstack-labs mercury-agent 1.1.12 Incorrect Privilege Assignment (CWE-266)","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/862630","name":"Submit #862630 | cosmicstack-labs mercury-agent 1.1.12 Exposure of Sensitive Information to an Unauthorized Actor (CWE-200) (Duplicate)","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/862636","name":"Submit #862636 | cosmicstack-labs mercury-agent 1.1.12 Incorrect Authorization (CWE-863) (Duplicate)","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/862637","name":"Submit #862637 | cosmicstack-labs mercury-agent 1.1.12 Improper Authorization (CWE-285) (Duplicate)","tags":["third-party-advisory"]},{"url":"https://github.com/cosmicstack-labs/mercury-agent/issues/72","tags":["exploit","issue-tracking"]},{"url":"https://github.com/cosmicstack-labs/mercury-agent/","tags":["product"]}],"x_generator":["VulDB PVTS v202608"]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-06T12:12:48.835183Z","id":"CVE-2026-18996","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":"2026-08-06T12:13:14.698Z"}}]}}