Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, the RedisArrayAggregator handler permanently leaks pooled direct-memory buffers when a Redis pipeline connection closes before a RESP array aggregate completes. The handler retains child messages in per-handler state (depths field) but defines no channelInactive, handlerRemoved, or exceptionCaught method to release them when the pipeline tears down. Because the leaked buffers are slices of PooledByteBufAllocator chunks, they prevent those chunks from being returned to the JVM-wide direct-memory pool. Repeated connection churn by any network peer monotonically drains this shared pool, eventually causing allocation failures on all Netty channels in the process. Versions 4.1.135.Final and 4.2.15.Final patch the issue.
CVE-2026-48006
“—” beside the score: it is equal to NVD's CVSS score.
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-11. NVD baseline CVSS 7.5; sources differ by 0.0.
Also known asEUVD-2026-36492 (ENISA EUVD) · GHSA-6jv9-x5w9-2ccm (GitHub Security Advisories)Source: ENISA EUVD
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5HIGHmedium confidence
- EG Risk
- 49EG Risk 49/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity75% × 45%Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation0.7% × 40%FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.Automatability100% × 15%CISA's SSVC Automatable value: yes (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 0.7%
- EPSS %ILE
- 54th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.
- EG Severity
- 7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
- EG Likelihood
- 0.7% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
June 11, 2026
Last Modified
September 18, 2026
Advisory Details (3)
Auto-updated Jun 12, 2026Lack of Lifecycle Cleanup Leads to Pooled ByteBuf Leak in RedisArrayAggregator · Advisory · netty/netty · GitHub
https://github.com/netty/netty/security/advisories/GHSA-6jv9-x5w9-2ccmnetty-4.2.15.Final
Patch available: netty/netty netty-4.2.15.Final
https://github.com/netty/netty/releases/tag/netty-4.2.15.Finalnetty-4.1.135.Final
Patch available: netty/netty netty-4.1.135.Final
https://github.com/netty/netty/releases/tag/netty-4.1.135.FinalVendor Advisories for CVE-2026-48006(7)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2026:53806Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 7.4.25 security update
- RHSA-2026:53646Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 7.4.25 Security update
- RHSA-2026:53645Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 7.4.25 Security update
- RHSA-2026:53644Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 7.4.25 security pdate
- RHSA-2026:41951Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Data Grid 8.6.2 security update
- RHSA-2026:37390Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Build of Apache Camel 4.18.1.P1 for Spring Boot release.
- GHSA-6jv9-x5w9-2ccmGitHub Security AdvisoriesHigh
Netty's Lack of Lifecycle Cleanup Leads to Pooled ByteBuf Leak in RedisArrayAggregator
Patch Availability(6)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| redhat | eap7-wildfly-0:7.4.25-2.GA_redhat_00001.1.el7eap | 2026-08-11 | redhat |
| redhat | eap7-wildfly-0:7.4.25-2.GA_redhat_00001.1.el8eap | 2026-08-11 | redhat |
| redhat | netty-codec-redis | 2026-08-11 | redhat |
| redhat | eap7-wildfly-0:7.4.25-2.GA_redhat_00001.1.el9eap | 2026-08-11 | redhat |
| maven | io.netty:netty-codec-redis @ 4.2.15.Final (fixes >= 4.2.0.Final, <= 4.2.14.Final) | — | ghsa |
| maven | io.netty:netty-codec-redis @ 4.1.135.Final (fixes <= 4.1.134.Final) | — | ghsa |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(5 across 5 ecosystems)
Debian:11(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| netty | 1:4.1.48-10 ... 1:4.1.48-9 (16 versions) |
| — |
Debian:12(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| netty | 1:4.1.48-10 ... 1:4.1.48-9 (12 versions) |
| — |
Debian:13(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| netty | 1:4.1.48-10 ... 1:4.1.48-16 (8 versions) |
| — |
Debian:14(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| netty | 1:4.1.48-10 ... 1:4.1.48-16 (7 versions) |
| — |
Maven(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| io.netty:netty-codec-redis | 4.1.0.Final ... 4.1.99.Final (135 versions) |
| — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(1)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 10× in last 7d / 43× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 100 of 257 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 157 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.7% · 54th percentile
- 2026-11-01 07:47 UTCGHSA enrichmentGHSA-6jv9-x5w9-2ccm · GitHub severity HIGH · GitHub CVSS 7.5
- 2026-11-01 07:47 UTCEG score recompute
- 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.7% · 54th percentile
- 2026-10-31 10:37 UTCEG score recompute
- 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.7% · 54th percentile
- 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.7% · 54th percentile
- 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.7% · 54th percentile
- 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.7% · 54th percentile
- 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.7% · 54th percentile
- 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.7% · 54th percentile
- 2026-10-25 14:23 UTCEG score recompute
- 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.8% · 57th percentile
- 2026-10-24 11:34 UTCEG score recompute
- 2026-10-24 11:34 UTCVendor advisory
- 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.8% · 57th percentile
- 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.8% · 57th percentile
- 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.8% · 57th percentile
- 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.8% · 57th percentile
- 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.8% · 57th percentile
- 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.8% · 57th percentile
- 2026-10-18 03:35 UTCEG score recompute
- 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.8% · 57th percentile
- 2026-10-17 12:31 UTCEG score recompute
- 2026-10-17 12:31 UTCVendor advisory
Show 75 moreShow fewer
- 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.8% · 57th percentile
- 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.8% · 57th percentile
- 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.8% · 57th percentile
- 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.8% · 57th percentile
- 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.8% · 56th percentile
- 2026-10-12 16:01 UTCEG score recompute
- 2026-10-11 19:44 UTCEG score recompute
- 2026-10-11 16:58 UTCEG score recompute
- 2026-10-11 14:23 UTCEG score recompute
- 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.8% · 56th percentile
- 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.8% · 56th percentile
- 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.8% · 56th percentile
- 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.8% · 56th percentile
- 2026-10-08 07:35 UTCOSV refresh
- 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.8% · 56th percentile
- 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.8% · 56th percentile
- 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.8% · 56th percentile
- 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.8% · 56th percentile
- 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.8% · 56th percentile
- 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.8% · 56th percentile
- 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.8% · 56th percentile
- 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.8% · 56th percentile
- 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.8% · 56th percentile
- 2026-09-26 00:27 UTCEPSS rescoreEPSS 0.8% · 56th percentile
- 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-09-18 13:22 UTCVendor advisory
- 2026-09-18 12:19 UTCEG score recompute
- 2026-09-18 12:19 UTCVendor advisory
- 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-14 04:10 UTCEG score recompute
- 2026-09-14 04:10 UTCVendor advisory
- 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-09 13:40 UTCVendor advisory
- 2026-09-09 12:38 UTCEG score recompute
- 2026-09-09 12:38 UTCVendor advisory
- 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-07 13:48 UTCVendor advisory
- 2026-09-07 12:34 UTCEG score recompute
- 2026-09-07 12:34 UTCVendor advisory
- 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-02 13:38 UTCVendor advisory
- 2026-09-02 12:38 UTCEG score recompute
- 2026-09-02 12:38 UTCVendor advisory
- 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-08-31 00:05 UTCEG score recompute
- 2026-08-31 00:05 UTCVendor advisory
- 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-08-25 00:05 UTCEG score recompute
- 2026-08-25 00:05 UTCVendor advisory
- 2026-08-23 21:44 UTCVendor advisory
- 2026-08-23 10:43 UTCEG score recompute
- 2026-08-23 10:43 UTCVendor advisory
- 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-08-21 19:16 UTCVendor advisory
- 2026-08-21 07:32 UTCEG score recompute
- 2026-08-21 07:32 UTCVendor advisory
- 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-08-20 20:30 UTCVendor advisory
- 2026-08-20 08:51 UTCEG score recompute
- 2026-08-20 08:51 UTCVendor advisory
- 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.7% · 51st percentile
Related CVEs(same product + same vendor + same CWE)
Same product
10 shownMaven:io.netty:netty-codec-redis · Debian:11:netty
Same vendor
10 shownredhat:RHSA-2026:37390
Frequently asked(5)
What is CVE-2026-48006?
When was the CVE record for CVE-2026-48006 published?
Is CVE-2026-48006 actively exploited?
What is the CVSS score of CVE-2026-48006?
How do I remediate CVE-2026-48006?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-48006
Is Your Infrastructure Affected by CVE-2026-48006?
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