{"id":"CVE-2026-115333","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-115333","generatedAt":"2026-10-28T02:24:25.605Z","title":"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.","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.","published":"2026-10-22T11:17:53.000Z","lastModified":"2026-10-23T15:17:28.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":8.2,"severity":"HIGH","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-287"],"affected":[],"epss":{"score":0.00362,"percentile":0.29745,"date":"2026-10-26","history":[{"date":"2026-10-23","score":0.00299,"percentile":0.21473}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-22T11:17:53.000Z","detail":{"score":"8.2","severity":"HIGH","publishedAt":"2026-10-22T11:17:52.563Z"},"summary":"New CVE, high severity (CVSS 8.2)."}],"references":[{"url":"https://github.com/uselotus/lotus","source":"disclosure@vulncheck.com"},{"url":"https://github.com/uselotus/lotus/blob/0.10.2/go/event-ingestion/authn/authn.go#L85-L95","source":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@leediay/BkUc3WL2Mx","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/lotus-through-0.10.2-improper-authentication-via-event-ingestion-api-key-prefix","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-115333","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}