An issue was discovered in Esoteric YamlBeans through 1.15.
Priority HIGH 69CWE-502Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-502.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00451 39th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | com.esotericsoftware.yamlbeans:yamlbeans (Maven) | up to 1.15 | — | No fix listed | GHSA-jm7r-4pg6-gf26 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- com.esotericsoftware.yamlbeans:yamlbeans (Maven) Vendor— Affected up to 1.15 Fixed in — No fix listed GHSA-jm7r-4pg6-gf26
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:esotericsoftware:yamlbeans:*:*:*:*:*:*:*:* | up to 1.15 | Vulnerable | Esotericsoftware |
- cpe:2.3:a:esotericsoftware:yamlbeans:*:*:*:*:*:*:*:* Versions up to 1.15 Vulnerable ·Esotericsoftware
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-24621
- 2026-10-03 Alias added: GHSA-jm7r-4pg6-gf26
References
More Esotericsoftware Yamlbeans vulnerabilities
- TI-2023-10228 An issue was discovered in Esoteric YamlBeans through 1.15. CVSS 3.1MEDIUM 5.5
Sources
- CVE-2023-24621 · CVE Program
- CVE-2023-24621 · NVD
- FIRST EPSS
- GHSA-jm7r-4pg6-gf26 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences