What’s Vulnerable › Vulnerabilities

CVE-2026-59318: DefaultToolCallingManager Global Resolver Fallback Allows Unadvertised Tool Dispatch via Prompt Injection

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-21 · updated 2026-10-15
• Weakness: CWE-863

Description

In Spring AI's tool calling support, the per-request tool list is advertised to the model as a boundary but is not fully enforced when a tool call is dispatched. Under certain conditions, a tool that was not made available to the current request could be invoked, potentially leading to privilege escalation. Affected versions: Spring AI: 2.0.0 Spring AI: 1.1.0 through 1.1.8 Spring AI: 1.0.0 through 1.0.9

Affected products

• Spring AI: from 1.0.0 before 1.0.10; from 1.1.0 before 1.1.9; from 2.0.0 before 2.0.1 — fixed in 1.0.10, 1.1.9, 2.0.1
• Spring AI: from 1.1.0 through 1.1.8; from 1.0.0 through 1.0.9; 2.0.0

How to fix

Upgrade to a fixed version: Spring AI 1.0.10, 1.1.9, 2.0.1. Check the vendor advisory for mitigations.

References

• https://spring.io/security/cve-2026-59318

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