CVE-2026-86463

Summary

Apache CXF's FIQL query parser has a CPU exhaustion vulnerability where long strings without operators cause excessive processing time, allowing attackers to consume server resources and potentially slow down or stop other requests.

Exploitability

Exploitation is relatively straightforward as attackers can craft malicious queries that trigger the parser's inefficient search pattern, requiring only access to the affected service's query endpoint with no additional preconditions.

Blast radius

The impact could be significant in environments where CXF services handle many concurrent requests, potentially causing denial of service for other legitimate users and degrading overall system performance.

Detection

No reliable host or network indicator is derivable from the published description.

Prioritized remediation

Upgrade to Apache CXF versions 4.2.4, 4.1.9, or 3.6.13 which contain the fix for this vulnerability.

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.