EUVD-2026-42095
GHSA-49f7-whx5-4256
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Unauthenticated network access via self-registration justifies PR:N/AV:N/AC:L; overwriting a shared singolo config to hijack all users' data is a scope change (S:C) with high C and I but no availability impact.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
1DescriptionCVE.org
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.
AnalysisAI
Instance-wide LLM configuration hijacking in Cognee before 1.2.0 lets any remote attacker self-register a normal account and overwrite the global LLM provider settings through the /api/v1/settings endpoint, which performs no admin or superuser authorization check. Because the configuration is held in a process-wide singleton cache, a single call redirects every user's LLM operations to an attacker-controlled endpoint, exfiltrating prompts, uploaded documents, extracted entities, and knowledge-graph content. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must be able to reach the Cognee API over the network and create an account via self-registration (the description explicitly says 'self-registering an account'), then call the settings endpoint that performs no admin/superuser check. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | All signals align toward high real-world priority. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker reaches a publicly exposed Cognee instance, uses the open self-registration flow to create an ordinary account, then calls the settings endpoint to point the global LLM provider base URL at a server they control. From that moment every user's prompts, uploaded documents, and generated knowledge-graph content are routed through the attacker's endpoint and silently captured. … |
| Remediation | Vendor-released patch: upgrade Cognee to v1.2.0 or later (https://github.com/topoteretes/cognee/releases/tag/v1.2.0); the fix is in commit d10b1b77e2157c6238fd4d1acb1923a048991699, which adds the missing admin/superuser authorization check to the settings endpoint. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: (1) Identify all systems running Cognee before version 1.2.0 and assess exploitation risk; (2) upgrade to Cognee v1.2.0 across all instances; (3) review /api/v1/settings endpoint access logs for unauthorized configuration changes. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-862 – Missing Authorization
View allSame technique Authentication Bypass
View allShare
External POC / Exploit Code
Leaving vuln.today