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Critical 9.3Published Oct 15, 2026

CVE-2026-19863An unauthenticated client may access certain protected resources when using EthereumAuthenticator if the request path contains the configured login path.

Updated under an hour ago ()

Does this affect you?

It affects Eclipse Foundation org.eclipse.jetty:jetty-ethereum. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.54%, higher than 44% of scored CVEs.

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
9.3 CRITICAL (v4.0, CNA)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
Weakness (CWE)
CWE-288, CWE-863
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
0.54% (percentile 44)
Assigned by
eclipse
NVD analysis
Awaiting Analysis
Record last updated
Oct 15, 2026
First seen by InfoSec Signals
Oct 15, 2026

Affected products

Affected products
Eclipse Foundation org.eclipse.jetty:jetty-ethereum
eclipse_foundation:org.eclipse.jetty_jetty_ethereum (from the name)
from 12.1.0 through 12.1.12
CNA record

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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