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SCA: security update for com.vaadin:flow-server, com.vaadin:vaadin (GHSA-rjgh-wgc7-m37j)

medium Tenable Self-Hosted Container Security Plugin ID 438674

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - An authentication bypass vulnerability exists in Vaadin 14.0.0 through 14.14.0, 23.0.0 through 23.6.6,
 24.0.0 through 24.9.7 and 25.0.0 through 25.0.1, applications using Spring Security due to inconsistent
 path pattern matching of reserved framework paths. Accessing the /VAADIN endpoint without a trailing slash
 bypasses security filters, and allowing unauthenticated users to trigger framework initialization and
 create sessions without proper authorization. Users of affected versions using Spring Security should
 upgrade as follows: 14.0.0-14.14.0 upgrade to 14.14.1, 23.0.0-23.6.6 to 23.6.7, 24.0.0 - 24.9.7 to 24.9.8,
 and 25.0.0-25.0.1 upgrade to 25.0.2 or newer. Please note that Vaadin versions 10-13 and 15-22 are no
 longer supported and you should update either to the latest 14, 23, 24, 25 version. (CVE-2026-2742)

Solution

Update the com.vaadin:flow-server library and its related packages to version 14.14.1 or later.

See Also

https://github.com/advisories/GHSA-rjgh-wgc7-m37j

Plugin Details

Severity: Medium

ID: 438674

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 3/12/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3.2

Percentile: 51.15

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS Score Source: CVE-2026-2742

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 5.3

Threat Score: 1.3

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 3/10/2026

Vulnerability Publication Date: 3/10/2026

Reference Information

CVE: CVE-2026-2742

cwe: CWE-284