{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-18852", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-08-04T15:49:29.645Z", "datePublished": "2026-08-04T23:15:10.086Z", "dateUpdated": "2026-08-04T23:15:10.086Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-08-04T23:15:10.086Z"}, "title": "epsilla-cloud vectordb Filter expr.cpp ShuntingYard unusual condition", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-754", "lang": "en", "description": "Improper Check for Unusual Conditions"}]}], "affected": [{"vendor": "epsilla-cloud", "product": "vectordb", "versions": [{"version": "0.3.0", "status": "affected"}, {"version": "0.3.1", "status": "affected"}, {"version": "0.3.2", "status": "affected"}, {"version": "0.3.3", "status": "affected"}, {"version": "0.3.4", "status": "affected"}, {"version": "0.3.5", "status": "affected"}, {"version": "0.3.6", "status": "affected"}, {"version": "0.3.7", "status": "affected"}, {"version": "0.3.8", "status": "affected"}, {"version": "0.3.9", "status": "affected"}, {"version": "0.3.10", "status": "affected"}, {"version": "0.3.11", "status": "affected"}, {"version": "0.3.12", "status": "affected"}, {"version": "0.3.13", "status": "affected"}, {"version": "0.3.14", "status": "affected"}, {"version": "0.3.15", "status": "affected"}, {"version": "0.3.16", "status": "affected"}, {"version": "0.3.17", "status": "affected"}, {"version": "0.3.18", "status": "affected"}, {"version": "df5a5f5afb85a2376a0f2f316c79dea9b2c6ac7a", "status": "affected"}], "cpes": ["cpe:2.3:a:epsilla-cloud:vectordb:*:*:*:*:*:*:*:*"], "modules": ["Filter Parser"]}], "descriptions": [{"lang": "en", "value": "A vulnerability has been found in epsilla-cloud vectordb up to 0.3.18/df5a5f5afb85a2376a0f2f316c79dea9b2c6ac7a. This impacts the function SplitTokens/ShuntingYard of the file engine/query/expr/expr.cpp of the component Filter Parser. Such manipulation leads to improper check for unusual conditions. The attack needs to be performed locally. The exploit has been disclosed to the public 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": 4.8, "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P", "baseSeverity": "MEDIUM"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 3.3, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R", "baseSeverity": "LOW"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 3.3, "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R", "baseSeverity": "LOW"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 1.7, "vectorString": "AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR"}}], "timeline": [{"time": "2026-08-04T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-08-04T02:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-08-04T17:54:34.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "fa1c4 (VulDB User)", "type": "reporter"}, {"lang": "en", "value": "VulDB CNA Team", "type": "coordinator"}], "references": [{"url": "https://vuldb.com/vuln/385857", "name": "VDB-385857 | epsilla-cloud vectordb Filter expr.cpp ShuntingYard unusual condition", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/385857/cti", "name": "VDB-385857 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/cve/CVE-2026-18852", "name": "CVE-2026-18852 | CVE Analysis and Report", "tags": ["third-party-advisory"]}, {"url": "https://vuldb.com/submit/858196", "name": "Submit #858196 | epsilla-cloud VectorDB df5a5f5afb85a2376a0f2f316c79dea9b2c6ac7a CWE-754: Improper Check for Unusual or Exceptional Conditions", "tags": ["third-party-advisory"]}, {"url": "https://github.com/fa1c4/security-advisories/tree/main/VectorDB", "tags": ["related"]}, {"url": "https://github.com/fa1c4/security-advisories/tree/main/VectorDB/PoC", "tags": ["exploit"]}], "x_generator": ["VulDB PVTS v202608"]}}}