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Learn moreSemantic Cache Cross-Tenant Isolation Bypass via SHA-256 Truncation
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 Spring Products and Versions
Spring AI:
- 2.0.0 - 2.0.0
Mitigation
Users of affected versions should upgrade to the corresponding fixed version.
| Fix version | Availability |
|---|---|
| 2.0.1 | OSS |
| 2.0.0.1 | Enterprise Support Only |
No further mitigation steps are necessary.
Credit
The issue was reported responsibly by Wayde Shi ([email protected]), from PayPal.
History
- 2026-08-20: Initial vulnerability report published.
Reporting a vulnerability
To report a security vulnerability for a project within the Spring portfolio, see the Security Policy
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