Description
An application using spring-security-saml2-service-provider and the REDIRECT binding for SAML 2.0 Login or Logout may be vulnerable to a denial of service by way of an unbounded writer that inflates the compressed SAML payload into memory.
Affected versions:
Spring Security 5.7.0 through 5.7.23; 5.8.0 through 5.8.25; 6.3.0 through 6.3.16; 6.4.0 through 6.4.16; 6.5.0 through 6.5.10; 7.0.0 through 7.0.5.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Spring | Spring Security | 5.7.0 – < 5.7.24, 5.8.0 – < 5.8.26, 6.3.0 – < 6.3.17, 6.4.0 – < 6.4.17, 6.5.0 – < 6.5.10.2, 7.0.0 – < 7.0.5.1 | 5.7.24 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.springframework.security:spring-security-saml2-service-provider | >= 7.0.0, < 7.0.6 | 7.0.6 | GHSA-m69x-pw9p-7j3q |
| Maven | org.springframework.security:spring-security-saml2-service-provider | >= 6.5.0, < 6.5.11 | 6.5.11 | GHSA-m69x-pw9p-7j3q |
| Maven | org.springframework.security:spring-security-saml2-service-provider | >= 6.4.0, <= 6.4.16 | — | GHSA-m69x-pw9p-7j3q |
| Maven | org.springframework.security:spring-security-saml2-service-provider | >= 6.3.0, <= 6.3.16 | — | GHSA-m69x-pw9p-7j3q |
| Maven | org.springframework.security:spring-security-saml2-service-provider | >= 5.8.0, <= 5.8.25 | — | GHSA-m69x-pw9p-7j3q |
| Maven | org.springframework.security:spring-security-saml2-service-provider | <= 5.7.23 | — | GHSA-m69x-pw9p-7j3q |
Advisories 1
- WID-SEC-2026-1869 VMware Tanzu Spring Security: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 31, 2026