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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.005 (37.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/EsotericSoftware (Third Party Advisory)
- contrastsecurity.com (Third Party Advisory)
- github.com/Contrast-Security-OSS/yamlbeans/blob/main/SECURITY.md (Exploit, Third Party Advisory)
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.