{"id":"CVE-2026-115333","title":"Lotus through 0.10.2 Improper Authentication via Event Ingestion API Key Prefix","summary":"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 a…","severity":"medium","cvss":5.9,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","cvssSource":"cna","cwe":["CWE-287"],"vendor":"uselotus","product":"lotus","affected":["lotus <= 0.10.2"],"published":"2026-10-22","updated":"2026-10-22","sourceUpdated":"2026-10-22T10:57:49.499Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-115333","references":[{"url":"https://hackmd.io/@leediay/BkUc3WL2Mx"},{"url":"https://github.com/uselotus/lotus/blob/0.10.2/go/event-ingestion/authn/authn.go#L85-L95"},{"url":"https://github.com/uselotus/lotus"},{"url":"https://www.vulncheck.com/advisories/lotus-through-0.10.2-improper-authentication-via-event-ingestion-api-key-prefix","label":"VulnCheck Advisory: Lotus through 0.10.2 Improper Authentication via Event Ingestion API Key Prefix"}],"tags":["cve.org"],"ingestedAt":"2026-10-22T11:37:02.331Z","slug":"CVE-2026-115333","body":"## Overview\n\nLotus 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.\n\n## Affected\n\n- `lotus <= 0.10.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":32,"depthScoreParts":{"impact":32.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}