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CVE-2026-40966

In Spring AI, an attacker can bypass conversation isolation and exfiltrate sensitive memory from other users’ chat histories, including secrets and credentials, by injecting filter logic through conversationId. Only applications that use VectorStoreChatMemoryAdvisor and pass user-supplied input as a conversationId are affected.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d62843537e7aef420960d2a0e921682efb7da1ee0d160d9919688a90dd5289d3
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"Spring AI","vendor":"VMware","versions":[{"lessThan":"1.0.6","status":"affected","version":"1.0.0","versionType":"OSS"},{"lessThan":"1.1.5","status":"affected","version":"1.1.0","versionType":"oss"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a784343164ec108e429f92f4cbb47c0422fb5898f35d03aee90454bd9a8736d6 · sha256:f7974bb15e16dfa9… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.9,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:a784343164ec108e429f92f4cbb47c0422fb5898f35d03aee90454bd9a8736d6 · sha256:f7974bb15e16dfa9… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-284","description":"CWE-284 Improper Access Control","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a784343164ec108e429f92f4cbb47c0422fb5898f35d03aee90454bd9a8736d6 · sha256:f7974bb15e16dfa9… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"url":"https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?version=3.1&vector=AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a784343164ec108e429f92f4cbb47c0422fb5898f35d03aee90454bd9a8736d6 · sha256:f7974bb15e16dfa9… · /containers/cna/references/1
{"url":"https://spring.io/security/cve-2026-40966"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a784343164ec108e429f92f4cbb47c0422fb5898f35d03aee90454bd9a8736d6 · sha256:f7974bb15e16dfa9… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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