CVE-2022-31691Network attack vector

Code execution via SnakeYAML special syntax

Published Nov 4, 2022 · Updated May 2, 2025

Code injection in Spring Tools 4 for Eclipse 4.16.0 and earlier and VS Code extensions 1.39.0 and earlier allows attackers to execute code. Their YAML editors process document content with SnakeYAML, whose supported special syntax can trigger code execution; the advisory does not identify the parser call or exact tag path. Spring has not disclosed how attacker-controlled YAML reaches an editor, whether user interaction is required, or the resulting execution context.

CVSS severity9.8
Critical
EPSS probability2.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Spring Tools 4 for Eclipse 4.16.0 and earlier and VS Code extensions 1.39.0 and earlier allows attackers to execute code. Their YAML editors process document content with SnakeYAML, whose supported special syntax can trigger code execution; the advisory does not identify the parser call or exact tag path. Spring has not disclosed how attacker-controlled YAML reaches an editor, whether user interaction is required, or the resulting execution context.

The record

CVE
CVE-2022-31691
Published
Nov 4, 2022
Updated
May 2, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-94, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 4, 2022CVE publishedPublication date reported by the CVE source.
  2. May 2, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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