CVE-2026-93492
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Io.netty/netty-codec-http2: netty: http/2 hpackencoder dos with large table size
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).
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Red Hat Build of Debezium 3.6
- Vendor
- Red Hat
- Product
- Red Hat Build of Debezium 3.6
- Platforms
- Unknown
- Default status
unaffected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat build of Quarkus 3.27.5.SP2
- Vendor
- Red Hat
- Product
- Red Hat build of Quarkus 3.27.5.SP2
- Platforms
- Unknown
- Default status
unaffected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/jbossnetwork/restricted/listSoftware.html
No explicit version tuples; consult this entry's default status.
Red Hat build of Quarkus 3.33.3.SP2
- Vendor
- Red Hat
- Product
- Red Hat build of Quarkus 3.33.3.SP2
- Platforms
- Unknown
- Default status
unaffected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/jbossnetwork/restricted/listSoftware.html
No explicit version tuples; consult this entry's default status.
Red Hat AMQ Broker 7
- Vendor
- Red Hat
- Product
- Red Hat AMQ Broker 7
- Platforms
- Unknown
- Default status
unaffected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat build of Apache Camel 4 for Quarkus 3
- Vendor
- Red Hat
- Product
- Red Hat build of Apache Camel 4 for Quarkus 3
- Platforms
- Unknown
- Default status
affected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat build of Apache Camel for Spring Boot 4
- Vendor
- Red Hat
- Product
- Red Hat build of Apache Camel for Spring Boot 4
- Platforms
- Unknown
- Default status
affected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat build of Apicurio Registry 3
- Vendor
- Red Hat
- Product
- Red Hat build of Apicurio Registry 3
- Platforms
- Unknown
- Default status
affected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Build of Keycloak
- Vendor
- Red Hat
- Product
- Red Hat Build of Keycloak
- Platforms
- Unknown
- Default status
affected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Data Grid 8
- Vendor
- Red Hat
- Product
- Red Hat Data Grid 8
- Platforms
- Unknown
- Default status
affected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Fuse 7
- Vendor
- Red Hat
- Product
- Red Hat Fuse 7
- Platforms
- Unknown
- Default status
unknown- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat JBoss Enterprise Application Platform 7
- Vendor
- Red Hat
- Product
- Red Hat JBoss Enterprise Application Platform 7
- Platforms
- Unknown
- Default status
unknown- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/jbossnetwork/restricted/listSoftware.html
No explicit version tuples; consult this entry's default status.
Red Hat JBoss Enterprise Application Platform 8
- Vendor
- Red Hat
- Product
- Red Hat JBoss Enterprise Application Platform 8
- Platforms
- Unknown
- Default status
unaffected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/jbossnetwork/restricted/listSoftware.html
No explicit version tuples; consult this entry's default status.
Red Hat JBoss Enterprise Application Platform Expansion Pack
- Vendor
- Red Hat
- Product
- Red Hat JBoss Enterprise Application Platform Expansion Pack
- Platforms
- Unknown
- Default status
affected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/jbossnetwork/restricted/listSoftware.html
No explicit version tuples; consult this entry's default status.
Red Hat Single Sign-On 7
- Vendor
- Red Hat
- Product
- Red Hat Single Sign-On 7
- Platforms
- Unknown
- Default status
unknown- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.