Auth bypass in Sugarforever Chat-Ollama
CVE-2026-111702
ChatOllama through commit 96c3ce5 contains an insecure direct object reference vulnerability that allows remote attackers to access other users' private knowledge bases by supplying sequential ids. Attackers can enumerate ids via GET /api/knowledgebases/{id} or the knowledgebaseId parameter of POST /api/models/chat to read metadata and retrieved document content.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
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/chat-ollama-knowledge-base-cross-user-idor (third-party-advisory)
- github.com/sugarforever/chat-ollama/blob/6f4245a96b58ce8833a8c51d90d923b0e98147… (technical-description)
- github.com/sugarforever/chat-ollama/blob/6f4245a96b58ce8833a8c51d90d923b0e98147… (technical-description)
- www.vulncheck.com/advisories/chatollama-through-commit-96c3ce5-idor-exposes-pri… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111702?
- CVE-2026-111702 is a high-severity vulnerability in Sugarforever Chat-Ollama, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.5/10. Published 2026-10-16.
- How severe is CVE-2026-111702?
- High severity. CVSS v3 base score is 7.5 out of 10.