CVE-2018-18854
CVSS v3
7.5
HIGH
EPSS Score
1.9 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Lightbend Spray spray-json through 1.3.4 allows remote attackers to cause a denial of service (resource consumption) because of Algorithmic Complexity during the parsing of many JSON object fields (with keys that have the same hash code).
Technical details
- Published
- 2018-10-31
Frequently asked questions
What is CVE-2018-18854?
Lightbend Spray spray-json through 1.3.4 allows remote attackers to cause a denial of service (resource consumption) because of Algorithmic Complexity during the parsing of many JSON object fields (with keys that have the same hash code).
Is CVE-2018-18854 actively exploited?
Active exploitation of CVE-2018-18854 has not been confirmed. Its EPSS score was 1.9% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2018-18854?
CVE-2018-18854 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2018-18854 affecting your environment?
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