Authentication Bypass by Spoofing (CWE-290)
6.3
CVSS 4.0 · Vendor: eclipse
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Severity by source
Vendor (eclipse)
PRIMARY
6.3
MEDIUM
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/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
Primary rating from Vendor (eclipse) · only source for this CVE.
CVSS VectorVendor: eclipse
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
X
Lifecycle Timeline
2
Analysis Generated
Sep 15, 2026 - 11:37 vuln.today
Patch available
Sep 14, 2026 - 17:17 EUVD
DescriptionCVE.org
In Siglet current and past versions the refresh token handler do not enforce proof of possession of the issuer DID.
AnalysisAI
Let me synthesize. Product: Siglet / Eclipse Data Plane Core. …
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Same weakness CWE-290 – Authentication Bypass by Spoofing
View allSame technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today
Destination URL
POC code from unknown sources may be malicious, contain backdoors, or be fake.
Always review and test exploit code in a safe, isolated environment (VM/sandbox).
Verify the source reputation and cross-reference with known databases (Exploit-DB, GitHub Security).
EUVD-2026-77577
GHSA-2f3m-r9cf-82r7