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CVE-2026-59308— Semantic Cache Cross-Tenant Isolation Bypass via SHA-256 Truncation

Quick assessment

Affected
Spring Spring AI
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Spring AI是美国Spring公司的一款人工智能框架。 Spring AI 2.0.0版本存在权限许可和访问控制问题漏洞，该漏洞源于上下文哈希未能正确隔离不同系统提示的缓存响应，可能导致缓存响应在无关上下文间共享。

CVSS 4.2 · Medium EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1567 · Exfiltration Over Web Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
Spring Spring AI 2.0.0 affected
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I. Basic Information for CVE-2026-59308

Vulnerability Information
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Vulnerability Title
Semantic Cache Cross-Tenant Isolation Bypass via SHA-256 Truncation
Source: CVE Program / CVE List V5
Vulnerability 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
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
将资源暴露给错误范围
Source: CVE Program / CVE List V5
Vulnerability Title
Spring AI 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Spring AI是美国Spring公司的一款人工智能框架。 Spring AI 2.0.0版本存在权限许可和访问控制问题漏洞，该漏洞源于上下文哈希未能正确隔离不同系统提示的缓存响应，可能导致缓存响应在无关上下文间共享。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Spring Spring AI 2.0.0 -

II. Public POCs for CVE-2026-59308

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III. Intelligence Information for CVE-2026-59308

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Vendor Advisories for CVE-2026-59308 (1)

Same Patch Batch · Spring · 2026-08-21 · 5 CVEs total

CVE-2026-59279 7.5 HIGH Unbounded persistent session allocation via repeated initialize requests
CVE-2026-59318 6.5 MEDIUM DefaultToolCallingManager Global Resolver Fallback Allows Unadvertised Tool Dispatch via P
CVE-2026-59296 5.9 MEDIUM Micrometer StatsD and Logging meter registries line-protocol and log injection vulnerabili
CVE-2026-59323 5.3 MEDIUM Micrometer Tracing Brave Bridge W3C Baggage propagation DoS vulnerability

IV. Related Vulnerabilities

Same product: Spring AI
Same vendor: Spring
Same weakness: CWE-668

V. Comments for CVE-2026-59308

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