CVSS 3.1 Score 7.5 of 10 (high)


Published Nov 13, 2023
Updated: Nov 16, 2023
CWE ID 674


CVE-2023-47163, also known as the Billion Laughs Attack vulnerability, affects Remarshal prior to version 0.17.1. This vulnerability allows for the expansion of YAML alias nodes without limitation, which can lead to a denial-of-service (DoS) condition when processing untrusted YAML files. The vulnerability has a high severity rating with a base score of 7.5 according to The affected products include various versions of Remarshal (t0TPvn, t0TPvm, t0TPvl, etc.). To remediate this vulnerability, users should update their Remarshal software to version 0.17.1 or later. The potential danger it poses to organizations is the risk of experiencing a DoS attack if untrusted YAML files are processed using vulnerable versions of Remarshal.

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