# CVE-2018-12540: High severity vulnerability that affects io.vertx:vertx-web

Source: https://junglewise.ai/threats/cve-2018-12540-high-severity-vulnerability-that-affects-io-vertx-vertx-web  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2018-10-17  
License: CC BY 4.0 with a link back

CVE-2018-12540 · Severity: info · Published 2018-10-17

High severity vulnerability that affects io.vertx:vertx-web

Technologies: [io.vertx:vertx-web (Maven)](https://junglewise.ai/threats/technologies/io-vertx-vertx-web). Vendors: [Maven](https://junglewise.ai/threats/vendors/maven).

## Quick answers

**Is CVE-2018-12540 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2018-12540 being exploited in the wild.

**How severe is CVE-2018-12540?** Informational severity, published 17 October 2018.

**Which products and versions are affected?** io.vertx:vertx-web (Maven) ECOSYSTEM:introduced=3.0.0,fixed=3.5.3.

**Is there a fix for CVE-2018-12540?** Yes. io.vertx:vertx-web (Maven): upgrade to 3.5.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2018-12540?** Check whether you run io.vertx:vertx-web (Maven) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- io.vertx:vertx-web (Maven): upgrade to 3.5.3 or later

  ```sh
  # set io.vertx:vertx-web to 3.5.3 in your pom.xml or build.gradle
  ```


## Affected products

- io.vertx:vertx-web (Maven) ECOSYSTEM:introduced=3.0.0,fixed=3.5.3

## Identifiers

- CVE-2018-12540
- GHSA-rvgg-f8qm-6h7j

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