CVE-2026-93575 Details
Description
A flaw was found in Netty's MqttDecoder. An unauthenticated remote attacker can exploit this vulnerability by sending a specially crafted MQTT CONNECT packet. The decoder fails to properly validate the 'Properties Length' against the 'Remaining Length', allowing an attacker to bypass size limits. This leads to excessive memory and CPU consumption, resulting in a denial of service (DoS) due to an OutOfMemoryError.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Sep 22, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2026-93575 | [email protected] | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2536967 | [email protected] |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-1035 | OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities | [email protected] |
Affected Products
No affected product data is available for this CVE.
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 25, 2026 | CVE Modified | [email protected] |
| Sep 22, 2026 | CVE Modified | CISA-ADP |
| Sep 18, 2026 | CVE Modified | [email protected] |
| Sep 18, 2026 | CVE Modified | [email protected] |
| Sep 18, 2026 | New CVE Received | [email protected] |