CVE-2026-88819: eclipse foundation eclipse data plane core Authentication Bypass by Spoofing
CVSS: 6.3v4.0MediumAwaiting analysis
Published 14-09-2026Last modified 14-09-2026
Vulnerability summary
CVE-2026-88819 is a medium (CVSS 6.3) Authentication Bypass by Spoofing vulnerability in eclipse foundation eclipse data plane core. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.9% of scored vulnerabilities.
CVSS score
6.3/10
010
Medium · v4.0 (CVE.org)EPSS score
0.17%
0%100%
Low · +0.05 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 14-09-2026PublishedVulnerability first disclosed.
- 14-09-2026Last modifiedVulnerability information updated.
Description
In Siglet current and past versions the refresh token handler do not enforce proof of possession of the issuer DID.
CVSS metrics
2 scores · 2 sources · 1 versionMedium 6.3Preferred score · CVE.org (CNA)
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:NSourcesAll 2 agree
- NVDNIST6.3MediumCVSS: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
EPSS trend
Probability
0.17%
Chance of exploitation in the next 30 days
Percentile
6%
Versus all other CVEs
30-day change
+0.05 pp
From 0.12% on 19-09-2026
19-09-202619-10-2026
EPSS score0.17%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-290Authentication Bypass by SpoofingThis attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.
- CWE-345Insufficient Verification of Data AuthenticityThe product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.
Affected systems
Eclipse foundation1 product
- eclipse data plane core≥ a6f7d4cc0093931287c349e1e546ad2932c08e8d, < 882fe22db42bc67abfd0304c4cdb141b762c35d1 | ≥ 0.1.0, ≤ 0.1.3
1 vendor · 1 product