CVE-2026-82384
Apache Roller: Unauthenticated deserialization in the XML-RPC endpoint
- Published
- Sep 28, 2026
- Updated
- Sep 29, 2026
- Assigning CNA
- apache
- Evidence observed
- Nov 4, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 62.8%
- Model date
- Nov 4, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
Deserialization of Untrusted Data in Apache Roller 6.1.5 allows an unauthenticated remote attacker to cause deserialization of attacker-controlled bytes, because the XML-RPC endpoint accepts vendor extension types that are deserialized during request parsing, before authentication. The servlet is mapped unconditionally, so parsing occurs even when the global XML-RPC feature is set to disabled; no non-default configuration is required for this path. This can lead to remote code execution. Users are recommended to upgrade to Apache Roller 6.1.6 or later, which disables the extension types and rejects requests when the XML-RPC feature is disabled.
Sources
Python PoC for CVE-2026-82384: detects and exploits unauthenticated XML-RPC Java deserialization in Apache Roller 6.1.5 via ysoserial payloads, with bulk scanning.
Docker lab and PoC for CVE-2026-82384, an unauthenticated Java deserialization RCE in Apache Roller 6.1.5, with detection and mitigation guidance.
Responsible use
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