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CVE-2020-36319

22
FAUCET Score

CVE-2020-36319 describes an insecure default configuration within the ObjectMapper component of Vaadin Flow versions 3.0.0 through 3.0.5 (Vaadin 15.0.0 through 15.0.4), potentially exposing sensitive data when used with frameworks like @RestController. This vulnerability carries a CVSS score of 6.5 (Medium), indicating that an attacker with low privileges can exploit it over the network with low complexity to achieve high confidentiality impact. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.0.0, < 3.0.6CPE matchmatch criteria
cpe:2.3:a:vaadin:flow:*:*:*:*:*:*:*:*
>= 15.0.0, < 15.0.5CPE matchmatch criteria
cpe:2.3:a:vaadin:vaadin:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

3.1LOW

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.6
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.00%
Probability of exploitation in next 30 days
EPSS Percentile
59.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0100 is in the 72nd percentile among its peer group of 21,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
mavenpatch availablevia ghsa
Product: com.vaadin:flow-serverFixed in: 3.0.6

Vendor Advisories (1)

mavenGHSA-rjww-2x8v-m9v9low

Potential sensitive data exposure in applications using Vaadin 15

Apr 19, 2021

References

github.com / vaadin/flow/pull/8016
PatchThird Party Advisory
github.com / vaadin/flow/pull/8051
PatchThird Party Advisory
vaadin.com / security/cve-2020-36319
Vendor Advisory