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CVE-2026-40988

Unbounded DEFLATE Inflation in SAML 2.0 Service Provider PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Spring / Spring Securityaffected 5.7.0 before 5.7.24; affected 5.8.0 before 5.8.26; affected 6.3.0 before 6.3.17; affected 6.4.0 before 6.4.17; affected 6.5.0 before 6.5.10.2; affected 7.0.0 before 7.0.5.1

CWE

CWE-400

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.