Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-10. a secondary CVSS source baseline 7.5; sources differ by 0.0.
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
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.
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
June 10, 2026
July 23, 2026
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| org.springframework.security:spring-security-saml2-service-provider | 7.0.0 ... 7.0.5 (6 versions) | 7.0.6 | — |
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 204 total refreshes for this CVE.
CWE-400
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-40988
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.