{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-84857","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","state":"PUBLISHED","assignerShortName":"VulDB","dateReserved":"2026-09-02T13:25:34.895Z","datePublished":"2026-09-02T20:00:08.589Z","dateUpdated":"2026-09-03T15:36:18.054Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB","dateUpdated":"2026-09-02T20:00:08.589Z"},"title":"sigoden aichat API Endpoint serve.rs memory allocation","problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-789","lang":"en","description":"Uncontrolled Memory Allocation"}]},{"descriptions":[{"type":"CWE","cweId":"CWE-400","lang":"en","description":"Resource Consumption"}]}],"affected":[{"vendor":"sigoden","product":"aichat","versions":[{"version":"0.30.0","status":"affected"},{"version":"0.30.1","status":"affected"},{"version":"0.30.2","status":"affected"},{"version":"0.30.3","status":"affected"},{"version":"0.30.4","status":"affected"}],"cpes":["cpe:2.3:a:sigoden:aichat:*:*:*:*:*:*:*:*"],"modules":["API Endpoint"]}],"descriptions":[{"lang":"en","value":"A flaw has been found in sigoden aichat up to 0.30.4. This affects an unknown function of the file src/serve.rs of the component API Endpoint. This manipulation causes uncontrolled memory allocation. The attack can be initiated remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way."}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":6.9,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":5.3,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R","baseSeverity":"MEDIUM"}},{"cvssV3_0":{"version":"3.0","baseScore":5.3,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":5,"vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:ND/RC:UR"}}],"timeline":[{"time":"2026-09-02T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-09-02T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-09-02T15:30:40.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"outlookgp (VulDB User)","type":"reporter"},{"lang":"en","value":"VulDB CNA Team","type":"coordinator"}],"references":[{"url":"https://vuldb.com/vuln/398132","name":"VDB-398132 | sigoden aichat API Endpoint serve.rs memory allocation","tags":["vdb-entry"]},{"url":"https://vuldb.com/vuln/398132/cti","name":"VDB-398132 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-84857","name":"CVE-2026-84857 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/886265","name":"Submit #886265 | sigoden AIChat 0.30.0 Denial of Service","tags":["third-party-advisory"]},{"url":"https://github.com/outlookgp/CVE/tree/main/AIChat_Serve_Request_Body_DoS_Report","tags":["exploit"]}],"x_generator":["VulDB PVTS v202609"]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-03T15:36:11.774377Z","id":"CVE-2026-84857","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"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":"2026-09-03T15:36:18.054Z"}}]}}