# [HIGH] Unsafe deserialization vulnerability in SnakeYaml (CVE-2022-1471)

**Source:** Snyk
**Published:** 2022-12-14
**Article:** https://snyk.io/blog/unsafe-deserialization-snakeyaml-java-cve-2022-1471/

## Threat Profile

Snyk Blog In this article
Written by Brian Vermeer 
December 14, 2022
0 mins read SnakeYaml is a well-known YAML 1.1 parser and emitter for Java. Recently, a vulnerability — CVE-2022-1471 — was reported for this package. This vulnerability can lead to arbitrary code execution. The org.yaml:snakeyaml package is widely used in the Java ecosystem, in part because it is packaged by default with Spring Boot in the spring-boot-starter . In this article, we look into the security vulnerability affectin…

## Indicators of Compromise (high-fidelity only)

- **CVE:** `CVE-2022-1471`

## MITRE ATT&CK Techniques

- **T1190** — Exploit Public-Facing Application

## Kill chain phases observed

_(none detected from narrative keywords)_

## Recommended hunts

### IOC-driven hunts (use shared templates)

These are standard IOC-substitution hunts — the canonical SPL and KQL live once in [`_TEMPLATES.md`](../_TEMPLATES.md), so we don't repeat the same boilerplate on every CVE / hash / network-IOC briefing.

- **Asset exposure — vulnerability matches article CVE(s)** ([template](../_TEMPLATES.md#asset-exposure)) — phase: **recon**, confidence: **High**
  - CVE(s): `CVE-2022-1471`


## Why this matters

Severity classified as **HIGH** based on: CVE present, 1 use case(s) fired, 1 technique(s) inferred. Read the full article for actor attribution, tooling details, and any defanged IOCs in the body that aren't visible in the RSS summary.