CVE-2026-40988
1 advisory.
Maven/org.springframework.security:spring-security-saml2-service-provider CVE-2026-40988: high 7.5, EPSS 0.46%
Spring Security SAML2 Service Provider: Unbounded writer inflates the compressed SAML payload into memory (DoS)
Action: Upgrade org.springframework.security:spring-security-saml2-service-provider to 6.5.11 (6.x) or 7.0.6 (7.x) or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 7.0.0 | 7.0.6 | - |
| 6.5.0 | 6.5.11 | - |
| 6.4.0 | - | 6.4.16 |
| 6.3.0 | - | 6.3.16 |
| 5.8.0 | - | 5.8.25 |
| 0 | - | 5.7.23 |
Fixed versions
| 7.0.6 | 6.5.11 |
Sources
- osv: GHSA-m69x-pw9p-7j3q
- https://nvd.nist.gov/vuln/detail/CVE-2026-40988
- https://github.com/spring-projects/spring-security
- https://github.com/spring-projects/spring-security/releases/tag/6.5.11
- https://github.com/spring-projects/spring-security/releases/tag/7.0.6
- https://spring.io/security/cve-2026-40988
CVE-2026-40988 · published · modified · JSON