{"id":"CVE-2026-18998","state":"PUBLISHED","title":"cosmicstack-labs mercury-agent delegate_task Tool sub-agent.ts SubAgent.run improper authorization","description":"A vulnerability was determined in cosmicstack-labs mercury-agent up to 1.1.12. Impacted is the function SubAgent.run of the file src/core/sub-agent.ts of the component delegate_task Tool. Executing a manipulation can lead to improper authorization. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.","publishedAt":"2026-08-06T04:45:09.185Z","updatedAt":"2026-08-06T17:32:05.855Z","severity":{"score":5.3,"label":"Medium","version":"4.0","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","source":"VulDB"},"assigner":"VulDB","products":["cosmicstack-labs mercury-agent"],"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":["delegate_task Tool"]}],"references":["https://vuldb.com/vuln/386381","https://vuldb.com/vuln/386381/cti","https://vuldb.com/cve/CVE-2026-18998","https://vuldb.com/submit/862628","https://vuldb.com/submit/862629","https://github.com/cosmicstack-labs/mercury-agent/issues/74","https://github.com/cosmicstack-labs/mercury-agent/"],"weaknesses":["CWE-285","CWE-266"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/18xxx/CVE-2026-18998.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-18998","state":"PUBLISHED","datePublished":"2026-08-06T04:45:09.185Z","dateUpdated":"2026-08-06T17:32:05.855Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-08-05T19:41:53.908Z"},"containers":{"cna":{"title":"cosmicstack-labs mercury-agent delegate_task Tool sub-agent.ts SubAgent.run improper authorization","descriptions":[{"lang":"en","value":"A vulnerability was determined in cosmicstack-labs mercury-agent up to 1.1.12. Impacted is the function SubAgent.run of the file src/core/sub-agent.ts of the component delegate_task Tool. Executing a manipulation can lead to improper authorization. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet."}],"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":["delegate_task Tool"]}],"references":[{"url":"https://vuldb.com/vuln/386381","name":"VDB-386381 | cosmicstack-labs mercury-agent delegate_task Tool sub-agent.ts SubAgent.run improper authorization","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/386381/cti","name":"VDB-386381 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-18998","name":"CVE-2026-18998 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/862628","name":"Submit #862628 | cosmicstack-labs mercury-agent 1.1.12 Improper Authorization (CWE-285)","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/862629","name":"Submit #862629 | 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/74","tags":["exploit","issue-tracking"]},{"url":"https://github.com/cosmicstack-labs/mercury-agent/","tags":["product"]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-285","type":"CWE","lang":"en","description":"Improper Authorization"}]},{"descriptions":[{"cweId":"CWE-266","type":"CWE","lang":"en","description":"Incorrect Privilege Assignment"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-08-06T04:45:09.185Z"},"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":"2026-08-05T21:47:01.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"ChenMarry (VulDB User)","type":"reporter"},{"lang":"en","value":"VulDB CNA Team","type":"coordinator"}],"x_generator":["VulDB PVTS v202608"]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-06T17:25:38.770763Z","id":"CVE-2026-18998","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-06T17:32:05.855Z"}}]}}}