Staging Environment: Content and features may be unstable or change without notice.
Advisory details: gitlab / maven/com.fasterxml.jackson.core/jackson-databind/CVE-2021-20190
Advisory ID gitlab/maven/com.fasterxml.jackson.core/jackson-databind/CVE-2021-20190
Aliases CVE-2021-20190
GHSA-5949-rw7g-wx7w
Summary Deserialization of untrusted data in jackson-databind A flaw was found in jackson-databind before 2.9.10.7 and 2.6.7.5. 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.
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (3)
CWE-502 Deserialization of Untrusted Data
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv2 https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/com.fasterxml.jackson.core/jackson-databind/CVE-2021-20190.yml
cvssv3.1 https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/com.fasterxml.jackson.core/jackson-databind/CVE-2021-20190.yml
Reference id Reference type URL
https://github.com/FasterXML/jackson-databind
https://github.com/FasterXML/jackson-databind/commit/08fbfacf89a4a4c026a6227a1b470ab7a13e2e88
https://github.com/FasterXML/jackson-databind/commit/7dbf51bf78d157098074a20bd9da39bd48c18e4a
https://lists.apache.org/thread.html/r380e9257bacb8551ee6fcf2c59890ae9477b2c78e553fa9ea08e9d9a@%3Ccommits.nifi.apache.org%3E
https://security.netapp.com/advisory/ntap-20210219-0008
https://www.oracle.com//security-alerts/cpujul2021.html
2854 Other https://github.com/FasterXML/jackson-databind/issues/2854
CVE-2021-20190 https://nvd.nist.gov/vuln/detail/CVE-2021-20190
GHSA-5949-rw7g-wx7w https://github.com/advisories/GHSA-5949-rw7g-wx7w
msg00025.html Mailing List https://lists.debian.org/debian-lts-announce/2021/04/msg00025.html
show_bug.cgi?id=1916633 Other https://bugzilla.redhat.com/show_bug.cgi?id=1916633
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:C Found at https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/com.fasterxml.jackson.core/jackson-databind/CVE-2021-20190.yml
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/com.fasterxml.jackson.core/jackson-databind/CVE-2021-20190.yml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-08-27T20:35:59Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2021/20xxx/CVE-2021-20190.json

Source Advisory: vulnrichment/CVE-2021-20190

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'total'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]