Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-5949-rw7g-wx7w
Advisory ID github_osv/GHSA-5949-rw7g-wx7w
Aliases CVE-2021-20190
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 7.3
Risk 3.6
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-502 Deserialization of Untrusted Data
System Score Found at
cvssv3.1 8.1 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/01/GHSA-5949-rw7g-wx7w/GHSA-5949-rw7g-wx7w.json
generic_textual HIGH
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
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: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/01/GHSA-5949-rw7g-wx7w/GHSA-5949-rw7g-wx7w.json
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'}]