CVE-2026-61799
Published:August 20, 2026
Updated:September 11, 2026
"io.netty.incubator:netty-incubator-codec-bhttp" uses attacker-controlled Binary HTTP variable-length integers as "long" values but accumulates them into "int" offsets. Large valid varint lengths wrap the internal offset negative, leading to unchecked "ArrayIndexOutOfBoundsException" / "IndexOutOfBoundsException" from a tiny malformed BHTTP payload. A remote peer can trigger connection-level denial of service in applications that expose "BinaryHttpParser" / "BinaryHttpDecoder" to untrusted input.
Affected Packages
https://github.com/netty/netty-incubator-codec-ohttp.git (GITHUB):
Affected version(s) >=netty-incubator-codec-parent-ohttp-0.0.1.Final <netty-incubator-codec-parent-ohttp-0.0.23.FinalFix Suggestion:
Update to version netty-incubator-codec-parent-ohttp-0.0.23.Finalio.netty.incubator:netty-incubator-codec-bhttp (JAVA):
Affected version(s) >=0.0.1.Final <0.0.23.FinalFix Suggestion:
Update to version 0.0.23.FinalRelated Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW