CVE-2026-56818
CVE-2026-56818: 1 tracked advisory record across Red Hat. Compare source-reported impact, fixes and remediation.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityHigh7.5
High [CVE-2026-56818] Memory leak in netty-codec-redis
CVE-2026-56818Source published Source updated
Netty is an asynchronous, event-driven network application framework. Prior to 4.1.136.Final and 4.2.16.Final, the RedisArrayAggregator Redis codec clears retained partial aggregate state when the maxNestedArrayDepth limit is exceeded, but it does not clear the same state when the sibling maxElements limit is exceeded. A peer can start a valid RESP array, send a bulk string child, then send a nested array header longer than the configured maxElements. Netty throws a decoder exception in decodeRedisArrayHeader, but the existing partial aggregate remains retained in the handler. If the application leaves the channel alive after the exception, later messages are still consumed into the pre-error aggregate, allowing an unauthenticated peer to keep attacker-controlled aggregate state alive…
- Affected products in this advisory
- Red Hat build of Apache Camel for Spring Boot 4
- Red Hat Data Grid 8
- Red Hat JBoss Enterprise Application Platform 7
- Red Hat JBoss Enterprise Application Platform Expansion Pack
1 more entries in the full advisory.
- Source-reported affected versions
- < 4.1.136.Final
- < 4.2.16.Final
- Source-reported fixed versions
- 4.1.136
- 4.2.16
- Mitigation guidance
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
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