CVE-2021-31403
Last modified
CVE-2021-31403 is a low-severity vulnerability rated 2.5/10 on the CVSS scale. Non-constant-time comparison of CSRF tokens in UIDL request handler in com.vaadin:vaadin-server versions 7.0.0 through 7.7.23 (Vaadin 7.0.0 through 7.7.23), and 8.0.0 through 8.12.2 (Vaadin 8.0.0 through 8.12.2) allows attacker to guess a security token via timing attack. EPSS estimates a 0.31% chance of exploitation in the next 30 days.
Description
Non-constant-time comparison of CSRF tokens in UIDL request handler in com.vaadin:vaadin-server versions 7.0.0 through 7.7.23 (Vaadin 7.0.0 through 7.7.23), and 8.0.0 through 8.12.2 (Vaadin 8.0.0 through 8.12.2) allows attacker to guess a security token via timing attack
Metrics
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Vaadin | Vaadin | >= 7.0.0, < 7.7.24 |
| Vaadin | Vaadin | >= 8.0.0, < 8.12.3 |
References
- https://github.com/vaadin/framework/pull/12188Patch, Third Party Advisory
- https://github.com/vaadin/framework/pull/12190Patch, Third Party Advisory
- https://vaadin.com/security/cve-2021-31403Vendor Advisory
- https://github.com/vaadin/framework/pull/12188Patch, Third Party Advisory
- https://github.com/vaadin/framework/pull/12190Patch, Third Party Advisory
- https://vaadin.com/security/cve-2021-31403Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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