Vulnerability · Published Aug 26, 2026 · Assigned by vmware
CVE-2026-47841WebAuthn User Verification Bypass via Session Serialization
High 7.4
In plain English
A high-severity security flaw in Spring Security from Spring. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities).
Severity (CVSS 3.1)7.4High
Exploit odds (30 days)0.4%top 70.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An application using Spring Security's WebAuthn support may be vulnerable to user verification bypass when using a distributed HTTP session store. Spring Security 7.1.0 Spring Security 7.0.0 - 7.0.6 Spring Security 6.5.0 - 6.5.11 Spring Security 6.4.0 - 6.4.18
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Spring | Spring Security | 7.1.07.0.0 – through 7.0.66.5.0 – through 6.5.116.4.0 – through 6.4.18 |