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.
CVE-2026-93572
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-18. a secondary CVSS source baseline 7.5; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(high)
- EG Risk
- 49(Track)EG Risk 49/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity75% × 45%Exploitation0% × 40%Automatability100% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 27%
- KEV
- Not listed
Published
September 18, 2026
Last Modified
September 18, 2026
Advisory Details (2)
Auto-updated Sep 18, 20262536963 – (CVE-2026-93572) CVE-2026-93572 netty: netty-codec-redis: io.netty/netty-codec-redis: Netty: RedisArrayAggregator nested RESP headers multiply patched preallocation limits
https://bugzilla.redhat.com/show_bug.cgi?id=2536963CVE-2026-93572 - Red Hat Customer Portal
Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a
https://access.redhat.com/security/cve/CVE-2026-93572Vendor Advisories for CVE-2026-93572(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 23× in last 7d / 23× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-20 20:16 UTCEPSS rescore
- 2026-09-20 18:01 UTCGHSA enrichment
- 2026-09-20 06:50 UTCGHSA enrichment
- 2026-09-19 19:40 UTCEG score recompute
- 2026-09-19 19:40 UTCGHSA enrichment
- 2026-09-19 08:35 UTCGHSA enrichment
- 2026-09-18 21:28 UTCGHSA enrichment
- 2026-09-18 19:08 UTCEG score recompute
- 2026-09-18 19:08 UTCGHSA enrichment
- 2026-09-18 15:25 UTCEG score recompute
- 2026-09-18 15:25 UTCGHSA enrichment
- 2026-09-18 14:44 UTCEG score recompute
- 2026-09-18 14:44 UTCGHSA enrichment
- 2026-09-18 13:34 UTCEG score recompute
- 2026-09-18 13:34 UTCGHSA enrichment
- 2026-09-18 13:22 UTCEG score recompute
- 2026-09-18 13:22 UTCGHSA enrichment
- 2026-09-18 13:14 UTCEG score recompute▲ 7.50
- 2026-09-18 13:14 UTCGHSA enrichment
- 2026-09-18 13:14 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
- 2026-09-18 11:19 UTCNVD update
- 2026-09-18 11:04 UTCEG score recompute
- 2026-09-18 11:04 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(5)
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Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-93572
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