CVE-2026-118488 Details
Description
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.
A vulnerability exists in the Eclipse Vert.x Redis client, specifically in versions 4.0.0 prior to 4.5.35 and 5.0.0 prior to 5.2.2. The issue arises when a malicious server sends unbounded bytes on an end-of-line (EOL) terminated line, causing the client's buffer to grow indefinitely and eventually leading to a out-of-memory (OOM) condition. Additionally, if the server sends a crafted RESP response, such as a bulk string missing its CRLF trailer, the parser can enter an infinite loop, repeatedly processing the same buffer and emitting the same response, which may also result in an OOM situation if the consumer buffers the responses.
Users can upgrade to Vert.x Redis client versions 5.2.3 or 4.5.36, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Nov 3, 2026CISA-ADP
Assessed Nov 3, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/vert-x3/vertx-redis-client/security/advisories/GHSA-7f58-g87w-gx7p | CISA-ADP | AdvisoryExploitRemedyVendor |
| https://github.com/vert-x3/vertx-redis-client/security/advisories/GHSA-7f58-g87w-gx7p | [email protected] | AdvisoryExploitRemedyVendor |
| https://gitlab.eclipse.org/security/cve-assignment/-/work_items/522 | [email protected] | Issue TrackingVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-770 | Allocation of Resources Without Limits or Throttling | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| Eclipse Vert.x | >= 4.0.0, <= 4.5.35 (semver) >= 5.0.0, <= 5.2.2 (semver) |
CPE
Remediation
| |
| Eclipse Vert.x Redis Client | >= 5.0.0, <= 5.2.2 (semver) <= 4.5.35 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 3, 2026 | CVE Modified | CISA-ADP |
| Nov 3, 2026 | New CVE Received | [email protected] |