CVE-2017-18640
CVSS v3
7.5
HIGH
EPSS Score
26.7 %
exploit probability, as of 2026-10-05
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
The Alias feature in SnakeYAML before 1.26 allows entity expansion during a load operation, a related issue to CVE-2003-1564.
Technical details
- Published
- 2019-12-12
Frequently asked questions
What is CVE-2017-18640?
The Alias feature in SnakeYAML before 1.26 allows entity expansion during a load operation, a related issue to CVE-2003-1564.
Is CVE-2017-18640 actively exploited?
Active exploitation of CVE-2017-18640 has not been confirmed. Its EPSS score was 26.7% on 2026-10-05, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2017-18640?
CVE-2017-18640 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2017-18640 affecting your environment?
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