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.
Metrics
CVSS 3.1 9.8/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| SnakeYAML | SnakeYAML | <= 2.0 |
References
- 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://bitbucket.org/snakeyaml/snakeyaml/issues/561/cve-2022-1471-vulnerability-in#comment-64581479Issue Tracking, Third Party Advisory
- https://confluence.atlassian.com/security/cve-2022-1471-snakeyaml-library-rce-vulnerability-in-multiple-products-1296171009.html
- https://github.com/google/security-research/security/advisories/GHSA-mjmj-j48q-9wg2Exploit, Third Party Advisory
- https://github.com/mbechler/marshalsecExploit, Third Party Advisory
- https://groups.google.com/g/kubernetes-security-announce/c/mwrakFaEdnc
- https://infosecwriteups.com/%EF%B8%8F-inside-the-160-comment-fight-to-fix-snakeyamls-rce-default-1a20c5ca4d4c
- https://security.netapp.com/advisory/ntap-20230818-0015/
- https://security.netapp.com/advisory/ntap-20240621-0006/
- https://www.github.com/mbechler/marshalsec/blob/master/marshalsec.pdf?raw=trueExploit, Third Party Advisory
- 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://bitbucket.org/snakeyaml/snakeyaml/issues/561/cve-2022-1471-vulnerability-in#comment-64581479Issue Tracking, Third Party Advisory
- https://github.com/google/security-research/security/advisories/GHSA-mjmj-j48q-9wg2Exploit, Third Party Advisory
- https://github.com/mbechler/marshalsecExploit, Third Party Advisory
- https://groups.google.com/g/kubernetes-security-announce/c/mwrakFaEdnc
- https://security.netapp.com/advisory/ntap-20230818-0015/
- https://security.netapp.com/advisory/ntap-20240621-0006/
- https://www.github.com/mbechler/marshalsec/blob/master/marshalsec.pdf?raw=trueExploit, Third Party Advisory
Timeline
- Published
- Dec 1, 2022
- Last modified
- Jun 17, 2026
- NVD status
- Modified