Description
Unbounded multi-line response accumulation in SmtpResponseDecoder leads to memory-exhaustion DoS
Published: 2026-09-18
Score: 7.5 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Workaround

See https://github.com/netty/netty/security/advisories/GHSA-pq4x-537v-r54q for fixed versions and remediation guidance.

Tracking

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Advisories

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History

Fri, 18 Sep 2026 13:45:00 +0000

Type Values Removed Values Added
Title Netty: netty-codec-smtp: io.netty/netty-codec-smtp: netty: unbounded multi-line response accumulation in smtpresponsedecoder leads to memory-exhaustion dos Io.netty/netty-codec-smtp: netty: unbounded multi-line response accumulation in smtpresponsedecoder leads to memory-exhaustion dos

Fri, 18 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Fri, 18 Sep 2026 11:00:00 +0000

Type Values Removed Values Added
Description Unbounded multi-line response accumulation in SmtpResponseDecoder leads to memory-exhaustion DoS
Title Netty: netty-codec-smtp: io.netty/netty-codec-smtp: netty: unbounded multi-line response accumulation in smtpresponsedecoder leads to memory-exhaustion dos
First Time appeared Redhat
Redhat camel Spring Boot
Redhat jboss Enterprise Application Platform
Redhat jboss Fuse
Redhat red Hat Single Sign On
Weaknesses CWE-1035
CPEs cpe:/a:redhat:camel_spring_boot:4
cpe:/a:redhat:jboss_enterprise_application_platform:7
cpe:/a:redhat:jboss_fuse:7
cpe:/a:redhat:red_hat_single_sign_on:7
Vendors & Products Redhat
Redhat camel Spring Boot
Redhat jboss Enterprise Application Platform
Redhat jboss Fuse
Redhat red Hat Single Sign On
References

Subscriptions

Redhat Camel Spring Boot Jboss Enterprise Application Platform Jboss Fuse Red Hat Single Sign On
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-09-18T13:32:22.314Z

Reserved: 2026-09-18T09:56:54.043Z

Link: CVE-2026-93563

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-18T11:17:21.773

Modified: 2026-09-18T14:19:08.463

Link: CVE-2026-93563

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses