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Vulnerability record · CVE-2021-20190 · published 19 January 2021

CVE-2021-20190: Fasterxml jackson-databind deserialization of untrusted data vulnerability

Fasterxml · Jackson Databind

A flaw was found in jackson-databind before 2.9.10.7. FasterXML mishandles the interaction between serialization gadgets and typing. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

8.1 CVSS 3.1 High EPSS 7.5% · top 5.7% CWE-502 · Deserialization of untrusted data
8.1CVSS 3.1 base score, v2 8.3
7.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
9Affected product versions listed by NVD
12References
24 Jul 2026Last modified by NVD

Description

A flaw was found in jackson-databind before 2.9.10.7. FasterXML mishandles the interaction between serialization gadgets and typing. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

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

Affected products

9 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugzilla.redhat.com/show_bug.cgi?id=1916633 Issue TrackingPatchThird Party Advisory
https://github.com/FasterXML/jackson-databind/issues/2854 PatchThird Party Advisory
https://lists.apache.org/thread.html/r380e9257bacb8551ee6fcf2c59890ae9477b2c78e553fa9ea08e9d9a%40%3Ccommits.nifi.apache. Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/04/msg00025.html Mailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20210219-0008/ Third Party Advisory
https://www.oracle.com//security-alerts/cpujul2021.html Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1916633 Issue TrackingPatchThird Party Advisory
https://github.com/FasterXML/jackson-databind/issues/2854 PatchThird Party Advisory
https://lists.apache.org/thread.html/r380e9257bacb8551ee6fcf2c59890ae9477b2c78e553fa9ea08e9d9a%40%3Ccommits.nifi.apache. Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/04/msg00025.html Mailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20210219-0008/ Third Party Advisory
https://www.oracle.com//security-alerts/cpujul2021.html Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2021-20190), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.