Improper Handling of Highly Compressed Data (Data Amplification) Affecting org.springframework.security:spring-security-saml2-service-provider package, versions [,6.5.11)[7.0.0-M1,7.0.6)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published12 Jun 2026
- disclosed10 Jun 2026
- creditUnknown
Introduced: 10 Jun 2026
CVE-2026-40988 (opens in a new tab)How to fix?
Upgrade org.springframework.security:spring-security-saml2-service-provider to version 6.5.11, 7.0.6 or higher.
Overview
org.springframework.security:spring-security-saml2-service-provider is a security component for the Spring Framework.
Affected versions of this package are vulnerable to Improper Handling of Highly Compressed Data (Data Amplification) in the REDIRECT binding. An attacker can exhaust system memory by submitting a specially crafted compressed SAML payload that, when inflated, consumes excessive resources.