Vulnerability details

CVE-2026-19863

CVSS 4.0
9.3Critical

Official description

An unauthenticated client may access certain protected resources when using EthereumAuthenticator if the request path contains the configured login path. This is caused by the authenticator using an unanchored substring match when identifying the login page. If the login path appears later within a protected request path, the request may be treated as the login page and its authentication or role requirement replaced with ALLOWED. Exploitation requires the protected resource path to contain the configured login path as a later segment. Explicitly FORBIDDEN routes are not affected.

CVSS scores

ScoreVersionSourceVector
9.3Critical 4.0 CVEProject cvelistV5 (CNA) (eclipse) 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

Affected products

VendorProductVersionsSource
Eclipse Foundation — 12.1.0 ≤ v ≤ 12.1.12 CVEProject cvelistV5 (CNA)

References and advisories

2
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Details

Published
2026-10-15
Last updated
2026-10-15
State
Published
Assigner (CNA)
eclipse
Kolun priority
25 · Low

Exploit prediction (EPSS)

0.5%
Probability of exploitation in 30 days
43.3%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
Yes
Exploitation
Proof of concept
Technical impact
Total

Weaknesses (CWE)

  • CWE-288
  • CWE-863