7.5High

CVE-2026-40988Unbounded DEFLATE Inflation in SAML 2.0 Service Provider

Spring Spring Security Published: (5 months ago)

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.

Weakness (CWE): CWE-400

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

VendorProductVersions
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
vmware spring security 5.7.0 – < 5.7.24

References and patches

CPE matches (NVD) (6)

  • cpe:2.3:a:vmware:spring_security:*:*:*:*:*:*:*:* ≥ 5.7.0 < 5.7.24
  • cpe:2.3:a:vmware:spring_security:*:*:*:*:*:*:*:* ≥ 5.8.0 < 5.8.26
  • cpe:2.3:a:vmware:spring_security:*:*:*:*:*:*:*:* ≥ 6.3.0 < 6.3.17
  • cpe:2.3:a:vmware:spring_security:*:*:*:*:*:*:*:* ≥ 6.4.0 < 6.4.17
  • cpe:2.3:a:vmware:spring_security:*:*:*:*:*:*:*:* ≥ 6.5.0 < 6.5.10.2
  • cpe:2.3:a:vmware:spring_security:*:*:*:*:*:*:*:* ≥ 7.0.0 < 7.0.5.1