CVE-2026-40988
A remote, anonymous attacker can exploit multiple vulnerabilities in VMware Tanzu Spring Security to cause a Denial of Service, execute arbitrary code, redirect users to arbitrary websites, disclose information, and assume the identity of another user.
CSIRTS triage
- What
- Multiple vulnerabilities in Tanzu Spring Security allow denial of service, remote code execution, open redirect, information disclosure, and identity spoofing.
- Who is affected
- All users of VMware Tanzu Spring Security are affected.
- Urgency
- Medium priority; multiple attack vectors present including unauthenticated DoS and RCE despite medium rating.
- Action
- Apply patches for CVE-2026-40988, CVE-2026-40993, CVE-2026-41003, CVE-2026-41008, CVE-2026-41694, CVE-2026-41706, and CVE-2026-47838.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.33% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 25% of all EPSS-scored CVEs.
Advisory coverage (2)
- medium[UPDATE] [medium] VMware Tanzu Spring Security: Multiple vulnerabilitiescert-bund · 2026-08-10
- highGHSA-m69x-pw9p-7j3q: Spring Security SAML2 Service Provider: Unbounded writer inflates the compressed SAML pay…ghsa · 2026-06-10
External references
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