CVE-2023-47163: Remarshal Project Remarshal

High severity, CVSS 7.5. EPSS: 1% chance of exploitation in the next 30 days.

Remarshal prior to v0.17.1 expands YAML alias nodes unlimitedly, hence Remarshal is vulnerable to Billion Laughs Attack. Processing untrusted YAML files may cause a denial-of-service (DoS) condition.

Affected products

• Remarshal Project Remarshal: before 0.17.1 (fixed in 0.17.1)

Published 2023-11-13. Last modified 2026-06-17.