{"id":"CVE-2026-115333","state":"PUBLISHED","title":"Lotus through 0.10.2 Improper Authentication via Event Ingestion API Key Prefix","description":"Lotus through 0.10.2 contains an improper authentication vulnerability in the Go event ingestion middleware that validates API keys by prefix only, without checking the secret against the stored hashed_key. Attackers who know or obtain an API key prefix can submit usage events to POST /api/track/ as that organization, altering its metered usage and billing.","publishedAt":"2026-10-22T10:57:49.499Z","updatedAt":"2026-10-23T15:03:54.486Z","severity":{"score":8.2,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["uselotus lotus"],"affected":[{"vendor":"uselotus","product":"lotus","packageURL":"pkg:github/uselotus/lotus","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"0.10.2","versionType":"semver"}]}],"references":["https://hackmd.io/@leediay/BkUc3WL2Mx","https://github.com/uselotus/lotus/blob/0.10.2/go/event-ingestion/authn/authn.go#L85-L95","https://github.com/uselotus/lotus","https://www.vulncheck.com/advisories/lotus-through-0.10.2-improper-authentication-via-event-ingestion-api-key-prefix"],"weaknesses":["CWE-287"],"ingestedAt":"2026-10-29T20:10:43.281Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/115xxx/CVE-2026-115333.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-115333","state":"PUBLISHED","datePublished":"2026-10-22T10:57:49.499Z","dateUpdated":"2026-10-23T15:03:54.486Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-10-22T10:37:08.228Z"},"containers":{"cna":{"title":"Lotus through 0.10.2 Improper Authentication via Event Ingestion API Key Prefix","descriptions":[{"lang":"en","value":"Lotus through 0.10.2 contains an improper authentication vulnerability in the Go event ingestion middleware that validates API keys by prefix only, without checking the secret against the stored hashed_key. Attackers who know or obtain an API key prefix can submit usage events to POST /api/track/ as that organization, altering its metered usage and billing."}],"affected":[{"vendor":"uselotus","product":"lotus","packageURL":"pkg:github/uselotus/lotus","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"0.10.2","versionType":"semver"}]}],"references":[{"url":"https://hackmd.io/@leediay/BkUc3WL2Mx","tags":["technical-description"]},{"url":"https://github.com/uselotus/lotus/blob/0.10.2/go/event-ingestion/authn/authn.go#L85-L95","tags":["technical-description"]},{"url":"https://github.com/uselotus/lotus","tags":["product"]},{"url":"https://www.vulncheck.com/advisories/lotus-through-0.10.2-improper-authentication-via-event-ingestion-api-key-prefix","name":"VulnCheck Advisory: Lotus through 0.10.2 Improper Authentication via Event Ingestion API Key Prefix","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE","baseScore":5.9,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","lang":"en","description":"Improper Authentication","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-10-22T10:57:49.499Z"},"datePublic":"2026-07-27T00:00:00.000Z","credits":[{"lang":"en","value":"leediay153 from Viettel Post","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-23T14:48:17.230948Z","id":"CVE-2026-115333","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-23T15:03:54.486Z"}}]}}}