CVE-2026-59308

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

Published Aug 21, 2026 CVSS 3.1 · 4.2 Medium EPSS < 1% KEV · Not listed
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

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
References
History
Type Values Removed Values Added
First Time appeared Vmware
Vmware spring Ai
CPEs cpe:2.3:a:vmware:spring_ai:*:-:*:*:*:*:*:*
Vendors & Products Vmware
Vmware spring Ai
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Spring
Spring spring Ai
Vendors & Products Spring
Spring spring Ai
Type Values Removed Values Added
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
Title Semantic Cache Cross-Tenant Isolation Bypass via SHA-256 Truncation
Weaknesses CWE-668
References
Metrics cvssV3_1

{'score': 4.2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
vmware
Published
Updated
Aug 21, 2026, 2:29 PM
Reserved
Jul 4, 2026, 6:13 PM
Status
Analyzed
Published
Aug 21, 2026, 12:16 PM
Modified
Oct 16, 2026, 3:10 PM