CVE-2026-93572

Summary

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 Software

Weaknesses

• CWE-770: Allocation of Resources Without Limits or Throttling

Workarounds

See https://github.com/netty/netty/security/advisories/GHSA-r4xx-7fpg-j8xg for fixed versions and remediation guidance.

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

References

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

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