CVE-2026-93492
Last modified
CVE-2026-93492 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. A flaw was found in Netty's HTTP/2 HpackEncoder. A remote attacker can exploit this by sending HTTP/2 SETTINGS frames with a very large MAX_HEADER_TABLE_SIZE.
Description
A flaw was found in Netty's HTTP/2 HpackEncoder. A remote attacker can exploit this by sending HTTP/2 SETTINGS frames with a very large MAX_HEADER_TABLE_SIZE. This causes the HpackEncoder to store an excessive number of unique headers, leading to increased CPU usage and memory consumption, ultimately resulting in a Denial of Service (DoS).
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat AMQ Broker 7 | All versions |
| Red Hat | Red Hat build of Apache Camel 4 for Quarkus 3 | All versions |
| Red Hat | Red Hat build of Apache Camel for Spring Boot 4 | All versions |
| Red Hat | Red Hat build of Apicurio Registry 3 | All versions |
| Red Hat | Red Hat build of Debezium 3 | All versions |
| Red Hat | Red Hat Build of Keycloak | All versions |
| Red Hat | Red Hat build of Quarkus | All versions |
| Red Hat | Red Hat Data Grid 8 | All versions |
| Red Hat | Red Hat Fuse 7 | All versions |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7 | All versions |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8 | All versions |
| Red Hat | Red Hat Single Sign-On 7 | All versions |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
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