CVE-2020-5397
Fixed upstream EPSS 3%CVSS 5.3
Spring Framework, versions 5.2.x prior to 5.2.3 are vulnerable to CSRF attacks through CORS preflight requests that target Spring MVC (spring-webmvc module) or Spring WebFlux (spring-webflux module) endpoints. Only non-authenticated endpoints are vulnerable because preflight requests should not include credentials and therefore requests should fail authentication. However a notable exception to this are Chrome based browsers when using client certificates for authentication since Chrome sends TLS client certificates in CORS preflight requests in violation of spec requirements. No HTTP body can be sent or received as a result of this attack.
Products: Spring Framework
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| Maven | org.springframework:spring-webflux | 5.2.3 |
| Maven | org.springframework:spring-webmvc | 5.2.3 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu 25.10 | libspring-java | no fix |
| Ubuntu 26.04 LTS | libspring-java | no fix |
| Ubuntu 26.10 | libspring-java | no fix |
| Ubuntu Pro 14.04 LTS | libspring-java | no fix |
| Ubuntu Pro 16.04 LTS | libspring-java | no fix |
| Ubuntu Pro 18.04 LTS | libspring-java | no fix |
| Ubuntu Pro 20.04 LTS | libspring-java | no fix |
| Ubuntu Pro 22.04 LTS | libspring-java | no fix |
| Ubuntu Pro 24.04 LTS | libspring-java | no fix |