# CVE-2026-73507: Netty: Denial of Service in XmlFrameDecoder via CPU Exhaustion

Source: https://junglewise.ai/threats/cve-2026-73507-netty-denial-of-service-in-xmlframedecoder-via-cpu-exhaustion  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-24  
License: CC BY 4.0 with a link back

CVE-2026-73507 · Severity: low · CVSS 3.1 · Published 2026-07-24

Netty: Denial of Service in XmlFrameDecoder via CPU Exhaustion

Vendors: [Maven](https://junglewise.ai/threats/vendors/maven).

## Quick answers

**Is CVE-2026-73507 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-73507 being exploited in the wild.

**How severe is CVE-2026-73507?** Low severity, with a CVSS score of 3.1, published 24 July 2026.

**Which products and versions are affected?** io.netty:netty-codec-xml (Maven) ECOSYSTEM:introduced=4.2.0.Final,fixed=4.2.16.Final.

**Is there a fix for CVE-2026-73507?** Yes. io.netty:netty-codec-xml (Maven): upgrade to 4.2.16.Final or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2026-73507?** Check whether you run io.netty:netty-codec-xml (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.netty:netty-codec-xml (Maven): upgrade to 4.2.16.Final or later

  ```sh
  # set io.netty:netty-codec-xml to 4.2.16.Final in your pom.xml or build.gradle
  ```


## Affected products

- io.netty:netty-codec-xml (Maven) ECOSYSTEM:introduced=4.2.0.Final,fixed=4.2.16.Final

## Identifiers

- CVE-2026-73507
- GHSA-v74w-7mr3-4qg3

## Related threats

- [Netty XmlDecoder XML external entity reference vulnerability](https://junglewise.ai/threats/cve-2026-56817-netty-xmldecoder-xml-external-entity-reference-vulnerability)