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CVE-2026-118488
Published:November 03, 2026
Updated:November 04, 2026
In Eclipse Vert.x versions [4.0.0, 4.5.35] or [5.0.0, 5.2.2], when a malicious server keeps sending bytes on an EOL-terminated line (not length-prefixed, for example a simple string [1]), we'll keep growing the buffer without bounds, eventually leading to an OOM. We need to have a configurable limit for EOL-terminated lines. If a malicious server sends a specially crafted RESP response (for example a bulk string [2] with missing CRLF trailer), the parser enters an infinite loop where it keeps parsing the same buffer and pushing the same response to the caller, which may lead e.g. to an OOM if the consumer just buffers the responses. We must fix the parser to avoid this infinite looping.
Affected Packages
https://github.com/vert-x3/vertx-redis-client.git (GITHUB):
Affected version(s) >=3.0.0 <4.5.36 || >=4.0.0.Beta1 <4.5.36
Fix Suggestion:
Update to version 4.5.36
https://github.com/vert-x3/vertx-redis-client.git (GITHUB):
Affected version(s) >=5.0.0.CR1 <5.2.3
Fix Suggestion:
Update to version 5.2.3
io.vertx:vertx-redis-client (JAVA):
Affected version(s) >=3.0.0 <4.5.36 || >=4.0.0.Beta1 <4.5.36
Fix Suggestion:
Update to version 4.5.36
io.vertx:vertx-redis-client (JAVA):
Affected version(s) >=5.0.0.CR1 <5.2.3
Fix Suggestion:
Update to version 5.2.3
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CVSS v4
Base Score:
8.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.9
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Allocation of Resources Without Limits or Throttling
EPSS
Base Score:
0.43