Deserialization in Esotericsoftware Yamlbeans

CVE-2023-24621

An issue was discovered in Esoteric YamlBeans through 1.15. It allows untrusted deserialisation to Java classes by default, where the data and class are controlled by the author of the YAML document being processed.

Vulnerability class: Insecure Deserialization

EPSS: 0.004 (36.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-24621?
CVE-2023-24621 is a high-severity vulnerability in Esotericsoftware Yamlbeans, classified under Deserialization of Untrusted Data. CVSS score: 7.8/10. Published 2023-08-25.
How severe is CVE-2023-24621?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2023-24621 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.