{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-59308", "assignerOrgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "state": "PUBLISHED", "assignerShortName": "vmware", "dateReserved": "2026-07-04T18:13:46.709Z", "datePublished": "2026-08-21T12:07:07.992Z", "dateUpdated": "2026-08-21T12:07:07.992Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "shortName": "vmware", "dateUpdated": "2026-08-21T12:07:07.992Z"}, "title": "Semantic Cache Cross-Tenant Isolation Bypass via SHA-256 Truncation", "problemTypes": [{"descriptions": [{"lang": "en", "description": "Exposure of Resource to Wrong Sphere", "type": "CWE", "cweId": "CWE-668"}]}], "impacts": [{"descriptions": [{"lang": "en", "value": "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": [{"vendor": "Spring", "product": "Spring AI", "versions": [{"status": "affected", "version": "2.0.0", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "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.\nAffected versions:\nSpring AI: 2.0.0", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>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.</p><p>Affected versions:</p><ul><li>Spring AI: 2.0.0</li></ul>"}]}], "references": [{"url": "https://spring.io/security/cve-2026-59308"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N", "baseScore": 4.2, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}}], "source": {"discovery": "UNKNOWN"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Spring AI", "vendor": "Spring", "versions": [{"status": "affected", "version": "2.0.0", "versionType": "custom"}]}], "source": "security@vmware.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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.\nAffected versions:\nSpring AI: 2.0.0"}], "id": "CVE-2026-59308", "lastModified": "2026-08-21T12:16:30.270", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 2.5, "source": "security@vmware.com", "type": "Secondary"}]}, "published": "2026-08-21T12:16:30.270", "references": [{"source": "security@vmware.com", "url": "https://spring.io/security/cve-2026-59308"}], "sourceIdentifier": "security@vmware.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-668"}], "source": "security@vmware.com", "type": "Secondary"}]}

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