{"id":"CVE-2026-90458","kind":"vulnerability","aliases":["CVE-2026-90458"],"related":[],"title":"OpenStack Ironic: vendor_passthru lets callers delete BMC Redfish accounts","description":"OpenStack Ironic before 39.0.1 allows DELETE and GET via vendor_passthru, e.g., to delete accounts from the BMC's Redfish service.","summary":"OpenStack Ironic before 39.0.1 exposes DELETE and GET methods through vendor_passthru, which can be used to act on the BMC. An attacker who can reach that API can delete accounts on the BMC's Redfish service.","severity":"medium","cvss":5.4,"epss":0.00277,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["bare-metal","infrastructure","ironic","openstack","redfish"],"not_affected_if":["isolated-bmc-network","no-ironic"],"how_to_check":"- Check the installed Ironic version with `openstack baremetal driver list` or the `ironic-api` package version; versions below `39.0.1` are affected.\n- Confirm whether the Ironic API is reachable from untrusted networks.","fix":"- Upgrade OpenStack Ironic to `39.0.1` or later.\n- Restrict access to the Ironic API and BMC management networks until patched.","status":"open","published_at":"2026-10-23T04:18:19+00:00","first_seen_at":"2026-10-23T21:57:32+00:00","triaged_at":"2026-10-25T04:14:18+00:00","updated_at":"2026-10-25T04:14:18+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-25T04:14:18Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade OpenStack Ironic to `39.0.1` or later.\n- Restrict access to the Ironic API and BMC management networks until patched.","reach":"network","title":"OpenStack Ironic: vendor_passthru lets callers delete BMC Redfish accounts","impact":"medium","summary":"OpenStack Ironic before 39.0.1 exposes DELETE and GET methods through vendor_passthru, which can be used to act on the BMC. An attacker who can reach that API can delete accounts on the BMC's Redfish service.","category":"infrastructure","nicknames":[],"who_cares":["openstack","ironic","bare-metal","redfish"],"confidence":0.6,"needs_auth":"yes","worst_case":"BMC user accounts get deleted, locking out out-of-band management","analyst_note":"Check the NVD entry for the exact required privilege level and whether vendor_passthru is enabled by default.","how_to_check":"- Check the installed Ironic version with `openstack baremetal driver list` or the `ironic-api` package version; versions below `39.0.1` are affected.\n- Confirm whether the Ironic API is reachable from untrusted networks.","needs_analyst":true,"not_affected_if":["no-ironic","isolated-bmc-network"],"who_is_affected":"Operators running OpenStack Ironic for bare-metal provisioning with vendor drivers that use vendor_passthru and Redfish-managed BMCs. Deployments that do not run Ironic, or that keep the API and BMC networks isolated, face much less exposure.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000622,"input_tokens":3329,"output_tokens":579,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-2026':12A,15A '-90458':13A,16A '39.0.1':27B,64C 'account':10A,54B,75C 'act':41B 'allow':65C 'api':51B 'attack':46B 'bare':18B 'bare-met':17B 'bmc':8A,44B,57B,78C 'caller':6A 'cve':11A,14A 'delet':7A,29B,53B,66C,74C 'e.g':72C 'expos':28B 'get':31B,68C 'infrastructur':20B 'iron':2A,21B,25B,62C 'let':5A 'metal':19B 'method':32B 'openstack':1A,22B,24B,61C 'passthru':4A,35B,71C 'reach':49B 'redfish':9A,23B,59B,80C 'servic':60B,81C 'use':39B 'vendor':3A,34B,70C 'via':69C","nicknames":[],"mitigations":[],"who_affected":"Operators running OpenStack Ironic for bare-metal provisioning with vendor drivers that use vendor_passthru and Redfish-managed BMCs. Deployments that do not run Ironic, or that keep the API and BMC networks isolated, face much less exposure.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-23T04:18:19+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","cvss_by":"cve@mitre.org","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-90458","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90458","severity":null,"published_at":"2026-10-23T04:18:19+00:00","modified_at":"2026-10-23T19:43:46+00:00","first_seen_at":"2026-10-23T21:57:32+00:00","fetched_at":"2026-10-23T22:29:03+00:00","note":null},{"source":"epss","external_id":"CVE-2026-90458","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-90458","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-24T07:15:51+00:00","fetched_at":"2026-10-24T07:15:51+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}