{"id":"CVE-2025-11915","aliases":["EUVD-2025-35358","GHSA-cwmv-37m7-7829"],"status":"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.","severity":{"version":"4.0","score":6.9,"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","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00322,"percentile":0.25518,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-444"],"published":"2025-10-22T09:13:24Z","modified":"2026-10-18T21:10:00Z","products":[{"vendor":"google cloud","product":"vertex ai: open models for maas"},{"vendor":"google cloud","product":"vertex ai: partner models for maas"},{"vendor":"google cloud","product":"vertex ai: self-deployed models"}],"references":[{"url":"https://cloud.google.com/vertex-ai/generative-ai/docs/security-bulletins#gcp-2025-059"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-11915"},{"url":"https://github.com/advisories/GHSA-cwmv-37m7-7829"}],"sources":{"cve":[{"id":"CVE-2025-11915","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.","status":"published","published":"2025-10-22T09:13:24.601Z","modified":"2025-10-23T09:23:21.342Z","cvss":[{"version":"4.0","score":6.9,"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","level":"medium","assessor":"cna"}],"cwes":["CWE-444"],"updated_at":"2026-11-02T14:32:50.872559Z"}],"euvd":[{"id":"EUVD-2025-35358","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.","status":"published","published":"2025-10-22T09:13:24Z","modified":"2025-10-23T09:23:21Z","cvss":[{"version":"4.0","score":6.9,"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","level":"medium"}],"updated_at":"2026-11-02T19:49:38.250854Z"}],"ghsa":[{"id":"GHSA-cwmv-37m7-7829","title":"Connection desynchronization between an HTTP proxy and the model backend. The fixes were rolled...","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.","status":"published","published":"2025-10-22T12:31:21Z","modified":"2025-10-22T12:31:28Z","cvss":[{"version":"4.0","score":6.9,"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Clear","level":"medium"}],"cwes":["CWE-444"],"updated_at":"2026-11-02T15:04:10.406188Z"}],"nvd":[{"id":"CVE-2025-11915","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.","status":"published","published":"2025-10-22T10:15:31.27Z","modified":"2026-10-18T21:10:00.12Z","cvss":[{"version":"4.0","score":6.9,"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Clear","level":"medium","assessor":"secondary"}],"cwes":["CWE-444"],"updated_at":"2026-11-02T14:11:39.069866Z"}]}}