CVE-2021-20190
Medium
Elevated severity or exploit probability.
CVSS base
8.1
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
7.5%
94.2th percentile
CISA KEV
Not listed
Weakness / dates
CWE-502
Published 2021-01-19 · modified 2026-07-24
CVSS breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
| Attack Vector | N | Network |
| Attack Complexity | H | High |
| Privileges Required | N | None |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | H | High |
Timeline
- 2021-01-19 — Published (NVD)
- 2026-07-24 — Last modified (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.
Affected
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1916633
- https://github.com/FasterXML/jackson-databind/issues/2854
- https://lists.apache.org/thread.html/r380e9257bacb8551ee6fcf2c59890ae9477b2c78e553fa9ea08e9d9a%40%3Ccommits.nifi.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2021/04/msg00025.html
- https://security.netapp.com/advisory/ntap-20210219-0008/
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1916633
- https://github.com/FasterXML/jackson-databind/issues/2854
- https://lists.apache.org/thread.html/r380e9257bacb8551ee6fcf2c59890ae9477b2c78e553fa9ea08e9d9a%40%3Ccommits.nifi.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2021/04/msg00025.html
- https://security.netapp.com/advisory/ntap-20210219-0008/
- https://www.oracle.com//security-alerts/cpujul2021.html