CVE-2021-46877

Name: CVE-2021-46877
Creator: NVD / NIST
Published: 2023-03-18T22:15:11.357+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.12%

Last modified Jun 17, 2026

CVE-2021-46877 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 1.12% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.12%

62.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Fasterxml	Jackson-Databind	>= 2.10.0, < 2.12.6
Fasterxml	Jackson-Databind	2.13.0

References

https://github.com/FasterXML/jackson-databind/issues/3328Exploit, Issue Tracking, Vendor Advisory
https://groups.google.com/g/jackson-user/c/OsBsirPM_VwMailing List, Release Notes
https://github.com/FasterXML/jackson-databind/issues/3328Exploit, Issue Tracking, Vendor Advisory
https://groups.google.com/g/jackson-user/c/OsBsirPM_VwMailing List, Release Notes

Timeline

Published: Mar 18, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-46877?

How severe is CVE-2021-46877?

CVE-2021-46877 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.12% probability of exploitation in the next 30 days.

How do I fix CVE-2021-46877?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-46877?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST