CVE-2026-115333 PUBLISHED

Lotus through 0.10.2 Improper Authentication via Event Ingestion API Key Prefix

Assigner: VulnCheck
Reserved: 22.10.2026 Published: 22.10.2026 Updated: 22.10.2026

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.

CVSS 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
CVSS Score: 8.2

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	High	Integrity	High	Integrity	None
Attack Requirements	Present	Availability	None	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS Score: 5.9

Attack Vector	Network	Scope	Unchanged
Attack Complexity	High	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	uselotus
Product	lotus
Versions	Default: unaffected affected from 0 to 0.10.2 (incl.)

CVE-2026-115333 PUBLISHED

Lotus through 0.10.2 Improper Authentication via Event Ingestion API Key Prefix

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Product Status

Credits

References

Problem Types