CVE-2026-115333
Lotus through 0.10.2 Improper Authentication via Event Ingestion API Key Prefix
- State
- Published
- Severity
- 8.2 High
- Published
- Oct 22, 2026
- Updated
- Oct 23, 2026
- Reserved
- Oct 22, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.2 High | 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 | VulnCheck |
| 3.1 | 5.9 Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N | VulnCheck |
Weaknesses
- CWE-287 Improper Authentication
Affected Products
| Product | Versions |
|---|---|
lotususelotus |
|
References
- https://hackmd.io/@leediay/BkUc3WL2Mxtechnical-description
- https://github.com/uselotus/lotus/blob/0.10.2/go/event-ingestion/authn/authn.go#L85-L95technical-description
- https://github.com/uselotus/lotusproduct
- VulnCheck Advisory: Lotus through 0.10.2 Improper Authentication via Event Ingestion API Key Prefixthird-party-advisory
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