What’s Vulnerable › Vulnerabilities

CVE-2026-93572: Io.netty/netty-codec-redis: netty: redisarrayaggregator nested resp headers multiply patched preallocation limits

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-18 · updated 2026-09-25
• Weakness: CWE-770

Description

A flaw was found in Netty's `RedisArrayAggregator` component. A remote attacker can exploit this vulnerability by sending specially crafted nested Redis (RESP) array headers. This can cause the `RedisArrayAggregator` to eagerly preallocate a large amount of heap memory, leading to heap memory exhaustion and a Denial of Service (DoS) for applications using `RedisDecoder` with `RedisArrayAggregator` on untrusted traffic.

Affected products

• Red Hat build of Apache Camel for Spring Boot 4: all versions
• Red Hat JBoss Enterprise Application Platform 7: all versions
• Red Hat Single Sign-On 7: all versions

References

• https://access.redhat.com/security/cve/CVE-2026-93572
• https://bugzilla.redhat.com/show_bug.cgi?id=2536963

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