Auth bypass in Topoteretes Cognee
CVE-2026-58473
Cognee before 1.2.0 contains an improper access control vulnerability that allows unauthenticated attackers to overwrite the global LLM provider configuration by self-registering an account and calling the settings endpoint, which performs no admin or superuser check. Attackers can redirect all LLM operations instance-wide to an attacker-controlled endpoint by exploiting the process-wide singleton configuration cache, enabling exfiltration of prompts, uploaded documents, extracted entities, and knowledge graph content from all users.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.005 (41.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Topoteretes Cognee — versions 0
Weakness classification (CWE)
References
- github.com/topoteretes/cognee/releases/tag/v1.2.0 (release-notes)
- github.com/topoteretes/cognee/issues/3084 (technical-description, exploit)
- github.com/topoteretes/cognee/commit/d10b1b77e2157c6238fd4d1acb1923a048991699 (patch)
- www.vulncheck.com/advisories/cognee-unauthorized-llm-configuration-overwrite-vi… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-58473?
- CVE-2026-58473 is a critical-severity vulnerability in Topoteretes Cognee, classified under Missing Authentication for Critical Function. CVSS score: 9.1/10. Published 2026-07-07.
- How severe is CVE-2026-58473?
- Critical severity. CVSS v3 base score is 9.1 out of 10.