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Description

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.

PUBLISHED Reserved 2026-06-30 | Published 2026-07-07 | Updated 2026-07-14 | Assigner VulnCheck




CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

CRITICAL: 9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Problem types

Missing Authorization

Missing Authentication for Critical Function

Product status

Default status
affected

Any version before 1.2.0
affected

Credits

YU SUN finder

References

github.com/topoteretes/cognee/releases/tag/v1.2.0 (Release Notes) release-notes

github.com/topoteretes/cognee/issues/3084 (Researcher Disclosure) technical-description exploit

github.com/...ommit/d10b1b77e2157c6238fd4d1acb1923a048991699 (Fix Commit) patch

www.vulncheck.com/...iguration-overwrite-via-api-v1-settings third-party-advisory

cve.org (CVE-2026-58473)

nvd.nist.gov (CVE-2026-58473)

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