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CVE-2016-2141 is an improper input-validation vulnerability in JGroups cluster communications. When a new node joined a cluster, JGroups did not require the headers needed by the ENCRYPT and AUTH protocols. An unauthenticated remote attacker could exploit the missing header validation to bypass cluster security restrictions and interact with the cluster as an unauthorized node.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
15 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An authorization-bypass vulnerability in JGroups where new cluster nodes were not required to provide necessary encryption and authentication headers, enabling an attacker to send and receive cluster messages.
An authorization-bypass vulnerability in JGroups cluster join handling that permits an attacker to bypass security restrictions and exchange cluster messages, potentially causing information disclosure or message spoofing.
An authorization-bypass vulnerability in JGroups cluster join handling that permits a new node lacking required encryption and authentication headers to bypass cluster security controls.
An authorization-bypass vulnerability in JGroups cluster joining that can enable information disclosure, message spoofing, or further attacks within a cluster.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.