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Apache disclosed CVE-2026-82384, a critical unauthenticated deserialization flaw in Apache Roller 6.1.5 that can enable remote code execution. The XML-RPC endpoint accepts attacker-controlled vendor extension types and deserializes their contents during request parsing, before authentication occurs. The vulnerability carries a CVSS v3.1 score of 9.8 and was credited to researcher n0mi1k.
The affected XML-RPC servlet remains mapped and reachable even where XML-RPC has been globally disabled, leaving default deployments exposed without requiring non-default configuration. Apache Roller 6.1.6 and later remediate the issue by disabling the problematic extension types and rejecting XML-RPC requests when the feature is disabled; organizations using 6.1.5 should upgrade promptly and restrict public access to affected instances pending remediation.
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Apache Roller disclosed CVE-2026-82384, a CVSS 9.8 critical vulnerability affecting version 6.1.5. The XML-RPC endpoint deserializes attacker-controlled extension types before authentication, potentially enabling unauthenticated remote code execution; version 6.1.6 and later disable the affected types and reject XML-RPC requests when the feature is disabled.
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