EUVD-2026-63933
GHSA-wmqr-wxf2-6449
Severity by source
AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N
Network-reachable application; high complexity from tool registration pre-conditions; low privilege required; scope change as unauthorized tool context is crossed; no availability impact.
Primary rating from Vendor (vmware).
CVSS VectorVendor: vmware
Lifecycle Timeline
1DescriptionCVE.org
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
AnalysisAI
Incorrect authorization in Spring AI's tool calling subsystem allows the per-request tool allowlist to be bypassed at dispatch time, enabling invocation of tools not made available to the current request. Affected are Spring AI versions 1.0.0-1.0.9, 1.1.0-1.1.8, and 2.0.0. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated account with at least low-privilege access to the Spring AI application (PR:L per CVSS vector). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N places this at medium severity (6.5), but the scope change and high confidentiality impact are the signals that elevate real-world concern: a successful exploit crosses a security boundary, giving access to tools and their data that were intentionally withheld from the request context. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Consult the official Spring security advisory at https://spring.io/security/cve-2026-59318 for the vendor-released patch version, which was not independently confirmed in the data available at time of analysis. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-863 – Incorrect Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
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