CVEvulnerability

CVE-2021-31406

2.5 LOW Published 2021-04-23 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-04-23
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.0 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS 3.1 ([email protected])
2.5 LOW — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS 2.0 ([email protected])
1.9 LOW — AV:L/AC:M/Au:N/C:P/I:N/A:N
Weaknesses
CWE-203, CWE-208

Description

Non-constant-time comparison of CSRF tokens in endpoint request handler in com.vaadin:flow-server versions 3.0.0 through 5.0.3 (Vaadin 15.0.0 through 18.0.6), and com.vaadin:fusion-endpoint version 6.0.0 (Vaadin 19.0.0) allows attacker to guess a security token for Fusion endpoints via timing attack.

Affected configurations

• vaadin flow (>= 3.0.0 < 5.0.4) • vaadin flow 6.0.0 • vaadin vaadin (>= 15.0.0 < 18.0.7) • vaadin vaadin 19.0.0

Related

Weakness · CWE (2)

  • CWE-203 Observable Discrepancy weakness
  • CWE-208 Observable Timing Discrepancy weakness

References