{"id":"CVE-2026-59308","state":"PUBLISHED","title":"Semantic 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.\nAffected versions:\nSpring AI: 2.0.0","publishedAt":"2026-08-21T12:07:07.992Z","updatedAt":"2026-08-21T14:29:06.814Z","severity":{"score":4.2,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","source":"vmware"},"assigner":"vmware","products":["Spring Spring AI"],"affected":[{"vendor":"Spring","product":"Spring AI","defaultStatus":"unaffected","versions":[{"version":"2.0.0","status":"affected","versionType":"custom"}]}],"references":["https://spring.io/security/cve-2026-59308"],"weaknesses":["CWE-668"],"ingestedAt":"2026-10-29T20:12:32.778Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/59xxx/CVE-2026-59308.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-59308","state":"PUBLISHED","datePublished":"2026-08-21T12:07:07.992Z","dateUpdated":"2026-08-21T14:29:06.814Z","assignerShortName":"vmware","assignerOrgId":"dcf2e128-44bd-42ed-91e8-88f912c1401d","dateReserved":"2026-07-04T18:13:46.709Z"},"containers":{"cna":{"title":"Semantic Cache Cross-Tenant Isolation Bypass via SHA-256 Truncation","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"}],"affected":[{"vendor":"Spring","product":"Spring AI","defaultStatus":"unaffected","versions":[{"version":"2.0.0","status":"affected","versionType":"custom"}]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-668","lang":"en","description":"Exposure of Resource to Wrong Sphere","type":"CWE"}]}],"providerMetadata":{"shortName":"vmware","orgId":"dcf2e128-44bd-42ed-91e8-88f912c1401d","dateUpdated":"2026-08-21T12:07:07.992Z"},"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."}]}],"source":{"discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-21T14:28:54.448242Z","id":"CVE-2026-59308","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-21T14:29:06.814Z"}}]}}}