{"id":"CVE-2025-11915","state":"PUBLISHED","title":"HTTP Desynchronisation in Vertex AI for certain third-party models","description":"Connection desynchronization between an HTTP proxy and the model backend. The fixes were rolled out for all proxies in front of impacted models by 2025-09-28. Users do not need to take any action.","publishedAt":"2025-10-22T09:13:24.601Z","updatedAt":"2025-10-23T09:23:21.342Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:L/SI:N/SA:L/U:Clear","source":"GoogleCloud"},"assigner":"GoogleCloud","products":["Google Cloud Vertex AI: Partner Models for MaaS","Google Cloud Vertex AI: Open Models for MaaS","Google Cloud Vertex AI: Self-Deployed Models"],"affected":[{"vendor":"Google Cloud","product":"Vertex AI: Partner Models for MaaS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2025-09-26","versionType":"date"}],"platforms":["https://cloud.google.com/vertex-ai/generative-ai/docs/partner-models/use-partner-models"]},{"vendor":"Google Cloud","product":"Vertex AI: Open Models for MaaS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2025-09-28","versionType":"date"}],"platforms":["https://cloud.google.com/vertex-ai/generative-ai/docs/maas/use-open-models"]},{"vendor":"Google Cloud","product":"Vertex AI: Self-Deployed Models","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2025-09-28","versionType":"date"}],"platforms":["https://cloud.google.com/vertex-ai/generative-ai/docs/model-garden/self-deployed-models"]}],"references":["https://cloud.google.com/vertex-ai/generative-ai/docs/security-bulletins#gcp-2025-059"],"weaknesses":["CWE-444"],"ingestedAt":"2026-10-29T20:08:31.050Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/11xxx/CVE-2025-11915.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-11915","state":"PUBLISHED","datePublished":"2025-10-22T09:13:24.601Z","dateUpdated":"2025-10-23T09:23:21.342Z","assignerShortName":"GoogleCloud","assignerOrgId":"f45cbf4e-4146-4068-b7e1-655ffc2c548c","dateReserved":"2025-10-17T13:16:40.480Z"},"containers":{"cna":{"title":"HTTP Desynchronisation in Vertex AI for certain third-party models","descriptions":[{"lang":"en","value":"Connection desynchronization between an HTTP proxy and the model backend. The fixes were rolled out for all proxies in front of impacted models by 2025-09-28. Users do not need to take any action."}],"affected":[{"vendor":"Google Cloud","product":"Vertex AI: Partner Models for MaaS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2025-09-26","versionType":"date"}],"platforms":["https://cloud.google.com/vertex-ai/generative-ai/docs/partner-models/use-partner-models"]},{"vendor":"Google Cloud","product":"Vertex AI: Open Models for MaaS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2025-09-28","versionType":"date"}],"platforms":["https://cloud.google.com/vertex-ai/generative-ai/docs/maas/use-open-models"]},{"vendor":"Google Cloud","product":"Vertex AI: Self-Deployed Models","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2025-09-28","versionType":"date"}],"platforms":["https://cloud.google.com/vertex-ai/generative-ai/docs/model-garden/self-deployed-models"]}],"references":[{"url":"https://cloud.google.com/vertex-ai/generative-ai/docs/security-bulletins#gcp-2025-059"}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","providerUrgency":"CLEAR","subAvailabilityImpact":"LOW","subConfidentialityImpact":"LOW","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:L/SI:N/SA:L/U:Clear","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-444","description":"CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"GoogleCloud","orgId":"f45cbf4e-4146-4068-b7e1-655ffc2c548c","dateUpdated":"2025-10-23T09:23:21.342Z"},"impacts":[{"capecId":"CAPEC-33","descriptions":[{"lang":"en","value":"CAPEC-33 HTTP Request Smuggling"}]}],"source":{"discovery":"UNKNOWN"},"tags":["exclusively-hosted-service"],"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-10-22T13:54:15.699505Z","id":"CVE-2025-11915","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-22T13:54:26.683Z"}}]}}}