criticalREV. 01
CVE-2022-1471SnakeYaml — Unrestricted Type Instantiation on Load
The library's default loader builds whatever object type a document names, so parsing attacker-supplied configuration text runs their code inside the application.
Read the risk
THE VITAL STATS- CVSS score
- 9.8/ 10 CVSS v3.1
- EPSS probability
- 100% Likelihood of exploitation
- Attack complexity
- Low Conditions needed to exploit
- Known exploited
- Not listed
- CVE published
- 2022-12-01
- Exploit published
- Yes
- Confidence
- high
- Kill chain
- execution
- MITRE ATT&CK
- T1190, T1059
- Severity
- critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attacker needsAn application parsing attacker-supplied configuration text
Behind the card
5 REFERENCES- 01CVE recordNVD recordnvd.nist.gov
- 02Exploitgithub.comgithub.com
- 03Exploitgithub.comgithub.com
- 04Exploitgithub.comgithub.com
- 05Writeupbitbucket.orgbitbucket.org
Field-level provenanceTRACE THE SOURCES +
Which source supports each field, when it was retrieved, and who extracted it.
| Fields | Source | Retrieved | Extractor | Confidence |
|---|---|---|---|---|
| cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_at | nvd.nist.gov | 2026-08-07 | scrty-crds-pipeline/0.1 | high |
| epss | api.first.org | 2026-08-07 | scrty-crds-pipeline/0.1 | high |
| title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisites | nvd.nist.gov | 2026-08-07 | claude-code | high |
Printing history
THE RECORD- r1Initial base card
First printing. This card has not been reprinted since publication.