CVE-2026-19863 PUBLISHED

Assigner: eclipse
Reserved: 14.08.2026 Published: 15.10.2026 Updated: 15.10.2026

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.

Metrics

CVSS Vector: 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
CVSS Score: 9.3

Product Status

Vendor Eclipse Foundation
Product
Versions Default: unaffected
  • affected from 12.1.0 to 12.1.12 (incl.)

Credits

  • https://github.com/4ra1n finder
  • https://github.com/EQSTLab finder
  • https://github.com/2REBCat finder

References

Problem Types

  • CWE-288 CWE
  • CWE-863 CWE