CVE-2021-46877
CVSS v3
7.5
HIGH
EPSS Score
1.1 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
jackson-databind 2.10.x through 2.12.x before 2.12.6 and 2.13.x before 2.13.1 allows attackers to cause a denial of service (2 GB transient heap usage per read) in uncommon situations involving JsonNode JDK serialization.
Technical details
- Published
- 2023-03-18
Frequently asked questions
What is CVE-2021-46877?
jackson-databind 2.10.x through 2.12.x before 2.12.6 and 2.13.x before 2.13.1 allows attackers to cause a denial of service (2 GB transient heap usage per read) in uncommon situations involving JsonNode JDK serialization.
Is CVE-2021-46877 actively exploited?
Active exploitation of CVE-2021-46877 has not been confirmed. Its EPSS score was 1.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-46877?
CVE-2021-46877 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2021-46877 affecting your environment?
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