Auth bypass in Ottermind Nubase
CVE-2026-111701
OtterMind Nubase through 0.1.4 contains a missing authentication vulnerability that allows unauthenticated attackers to access private bucket objects because /storage/v1/object/{bucketId}/{path} is treated as public for every HTTP method. Attackers knowing a tenant subdomain, bucket id and object path can download objects from private buckets and delete stored objects without an apikey or JWT.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- hackmd.io/@hieuPenguinnn/nubase-storage-private-object-unauth-download (third-party-advisory)
- github.com/OtterMind/Nubase/blob/v0.1.4/src/main/java/ai/nubase/common/multiten… (technical-description)
- github.com/OtterMind/Nubase/blob/v0.1.4/src/main/java/ai/nubase/auth/controller… (technical-description)
- github.com/OtterMind/Nubase/blob/v0.1.4/src/main/java/ai/nubase/auth/service/St… (technical-description)
- VulnCheck Advisory: OtterMind Nubase through 0.1.4 Missing Authentication in Storage Object API (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111701?
- CVE-2026-111701 is a high-severity vulnerability in Ottermind Nubase, classified under Missing Authentication for Critical Function. CVSS score: 7.0/10. Published 2026-10-16.
- How severe is CVE-2026-111701?
- High severity. CVSS v3 base score is 7.0 out of 10.