High severity7.5NVD Advisory· Published May 6, 2021· Updated Jun 17, 2026
CVE-2021-31409
CVE-2021-31409
Description
Unsafe validation RegEx in EmailValidator component in com.vaadin:vaadin-compatibility-server versions 8.0.0 through 8.12.4 (Vaadin versions 8.0.0 through 8.12.4) allows attackers to cause uncontrolled resource consumption by submitting malicious email addresses.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
com.vaadin:vaadin-compatibility-serverMaven | >= 8.0.0, < 8.13.0 | 8.13.0 |
Affected products
4- Range: 8.0.0
Patches
Vulnerability mechanics
References
6- github.com/vaadin/framework/issues/12240nvdPatchThird Party AdvisoryWEB
- github.com/vaadin/framework/pull/12241nvdPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-c332-w4jm-55wvghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-31409ghsaADVISORY
- vaadin.com/security/cve-2021-31409nvdVendor AdvisoryWEB
- github.com/vaadin/framework/security/advisories/GHSA-c332-w4jm-55wvghsaWEB
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