CVE-2022-1471
Remote Code execution in SnakeYAML
- State
- Published
- Severity
- 8.3 High
- Published
- Dec 1, 2022
- Updated
- Jun 18, 2025
- Reserved
- Apr 26, 2022
Description
SnakeYaml's Constructor() class does not restrict types which can be instantiated during deserialization. Deserializing yaml content provided by an attacker can lead to remote code execution. We recommend using SnakeYaml's SafeConsturctor when parsing untrusted content to restrict deserialization. We recommend upgrading to version 2.0 and beyond.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.3 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L |
Weaknesses
- CWE-20 Improper Input Validation
Affected Products
| Product | Versions |
|---|---|
SnakeYAMLSnakeYAML |
|
References
- https://github.com/google/security-research/security/advisories/GHSA-mjmj-j48q-9wg2
- https://bitbucket.org/snakeyaml/snakeyaml/issues/561/cve-2022-1471-vulnerability-in#comment-64581479
- https://github.com/mbechler/marshalsec
- https://www.github.com/mbechler/marshalsec/blob/master/marshalsec.pdf?raw=true
- https://groups.google.com/g/kubernetes-security-announce/c/mwrakFaEdnc
- https://security.netapp.com/advisory/ntap-20230818-0015/
- http://packetstormsecurity.com/files/175095/PyTorch-Model-Server-Registration-Deserialization-Remote-Code-Execution.html
- http://www.openwall.com/lists/oss-security/2023/11/19/1
- https://security.netapp.com/advisory/ntap-20240621-0006/
- https://infosecwriteups.com/%EF%B8%8F-inside-the-160-comment-fight-to-fix-snakeyamls-rce-default-1a20c5ca4d4c
- https://confluence.atlassian.com/security/cve-2022-1471-snakeyaml-library-rce-vulnerability-in-multiple-products-1296171009.html
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