EUVD-2026-69413
GHSA-7j79-fp44-8grh
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Unauthenticated network-reachable endpoint leaks the token-signing key (PR:N/AC:L), enabling token forgery and full application takeover, so C/I/A all High.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
5DescriptionCVE.org
An issue in fast-note-sync-service <=2.13.7 allows a remote attacker to escalate privileges via the admin configuration endpoint exposes authTokenKey
AnalysisAI
Privilege escalation in haierkeys fast-note-sync-service versions 2.13.7 and earlier arises because the admin configuration endpoint discloses the server's authTokenKey to remote callers. Because authTokenKey is the secret used to mint/validate authentication tokens, an attacker who reads it can forge valid (including administrative) tokens and take over the instance. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires network reachability to the fast-note-sync-service admin configuration endpoint on a vulnerable instance (<=2.13.7); the CVSS vector (PR:N/UI:N) indicates no authentication or user interaction is needed to retrieve the exposed authTokenKey. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The supplied CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H = 9.8) is defensible: a remotely reachable endpoint discloses a signing key with no authentication, and key disclosure realistically chains to token forgery yielding full confidentiality, integrity, and availability impact over the application. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released fixed version is identified in the available data, so no exact patch version can be cited; monitor the project's GitHub repository and issue #268 (https://github.com/haierkeys/fast-note-sync-service/issues/268) for a tagged release beyond 2.13.7 and upgrade once published. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all systems running haierkeys fast-note-sync-service version 2.13.7 or earlier and immediately isolate affected instances from production networks if operationally feasible. …
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Same weakness CWE-284 – Improper Access Control
View allSame technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today