CVE-2026-59308

Semantic Cache Cross-Tenant Isolation Bypass via SHA-256 Truncation

Published: Aug 21, 2026Updated: Sep 16, 2026 Sources: CVE List NVDCWE-668

4.2MEDIUM

Description

In Spring AI's Semantic Cache support, the context hash used to isolate cached responses between different system prompts could allow cached responses to be shared across unrelated contexts. Affected versions: Spring AI: 2.0.0

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:HAttack Complexity

High

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:LConfidentiality

Low

I:LIntegrity

Low

A:NAvailability

None

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Weaknesses

CWE-668

Affected Products

Spring

oss-projectaka spring security, spring boot, spring framework

Spring AI

OSS Libraries

vmware

commercial·USaka vmware inc

spring aiLibraryLibrary

AI / ML / ai-agent-tooling

Exploitability

Official Patch Available

Is your org exposed to CVE-2026-59308?Request an assessment to establish which checks are appropriate for your systems. Check my exposure

References

https://spring.io/security/cve-2026-59308

spring.io

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