{"id":"CVE-2026-74848","aliases":["BIT-apisix-2026-74848","EUVD-2026-66958","GHSA-3g86-xcpq-wppj"],"status":"published","title":"Apache APISIX: Cross-user response poisoning in serverless plugins","description":"Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache APISIX.\n\nAn attacker could make other clients receive attacker-chosen or other users' responses on serverless-plugin routes.\n\n\n\n\nThis issue affects Apache APISIX: from 2.12.0 through 3.17.0.\n\n\n\nUsers are recommended to upgrade to version 3.18.0, which fixes the issue.","severity":{"version":"4.0","score":7,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00594,"percentile":0.48854,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-444"],"published":"2026-08-27T09:16:06Z","modified":"2026-10-28T02:30:55Z","fixes":[{"ecosystem":"Bitnami","package":"apisix","fixed_in":["3.18.0"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"apisix","ranges":[{"type":"SEMVER","events":[{"introduced":"2.12.0"},{"fixed":"3.18.0"}]}]}],"products":[{"vendor":"apache","product":"apisix"},{"vendor":"apache software foundation","product":"apache apisix"}],"references":[{"url":"https://lists.apache.org/thread/xdgpszmw8dw4wvmfxy043d83m150kx3n","tags":["vendor-advisory","Mailing List","Vendor Advisory","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2026/08/26/12","tags":["Mailing List","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74848","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-3g86-xcpq-wppj"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74848.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-74848","title":"Apache APISIX: Cross-user response poisoning in serverless plugins","description":"Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache APISIX.\n\nAn attacker could make other clients receive attacker-chosen or other users' responses on serverless-plugin routes.\n\n\n\n\nThis issue affects Apache APISIX: from 2.12.0 through 3.17.0.\n\n\n\nUsers are recommended to upgrade to version 3.18.0, which fixes the issue.","status":"published","published":"2026-08-27T09:16:06.985Z","modified":"2026-08-27T12:05:30.79Z","cvss":[{"version":"4.0","score":7,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-444"],"updated_at":"2026-11-02T14:20:03.081354Z"}],"euvd":[{"id":"EUVD-2026-66958","description":"Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache APISIX.\n\nAn attacker could make other clients receive attacker-chosen or other users' responses on serverless-plugin routes.\n\n\n\n\nThis issue affects Apache APISIX: from 2.12.0 through 3.17.0.\n\n\n\nUsers are recommended to upgrade to version 3.18.0, which fixes the issue.","status":"published","published":"2026-08-27T09:16:06Z","modified":"2026-08-27T12:05:30Z","cvss":[{"version":"4.0","score":7,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N","level":"high"}],"updated_at":"2026-11-02T18:01:28.581047Z"}],"ghsa":[{"id":"GHSA-3g86-xcpq-wppj","title":"Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in...","description":"Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache APISIX.\n\nAn attacker could make other clients receive attacker-chosen or other users' responses on serverless-plugin routes.\n\n\n\n\nThis issue affects Apache APISIX: from 2.12.0 through 3.17.0.\n\n\n\nUsers are recommended to upgrade to version 3.18.0, which fixes the issue.","status":"published","published":"2026-08-27T12:30:25Z","modified":"2026-08-31T21:31:53Z","cvss":[{"version":"4.0","score":7,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/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:X","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-444"],"updated_at":"2026-11-02T15:11:11.962153Z"}],"nvd":[{"id":"CVE-2026-74848","description":"Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache APISIX.\n\nAn attacker could make other clients receive attacker-chosen or other users' responses on serverless-plugin routes.\n\n\n\n\nThis issue affects Apache APISIX: from 2.12.0 through 3.17.0.\n\n\n\nUsers are recommended to upgrade to version 3.18.0, which fixes the issue.","status":"published","published":"2026-08-27T10:16:36.337Z","modified":"2026-08-31T19:00:05.163Z","cvss":[{"version":"4.0","score":7,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/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:X","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-444"],"updated_at":"2026-11-02T14:12:42.035353Z"}],"osv":[{"id":"CVE-2026-74848","title":"Apache APISIX: Cross-user response poisoning in serverless plugins","description":"Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache APISIX.\n\nAn attacker could make other clients receive attacker-chosen or other users' responses on serverless-plugin routes.\n\n\n\n\nThis issue affects Apache APISIX: from 2.12.0 through 3.17.0.\n\n\n\nUsers are recommended to upgrade to version 3.18.0, which fixes the issue.","status":"published","published":"2026-08-27T09:16:06.985Z","modified":"2026-10-28T02:30:55.070193566Z","cvss":[{"version":"4.0","score":7,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N","level":"high"}],"cwes":["CWE-444"],"updated_at":"2026-11-02T15:45:16.748692Z"},{"id":"BIT-apisix-2026-74848","title":"Apache APISIX: Cross-user response poisoning in serverless plugins","description":"Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache APISIX.\n\nAn attacker could make other clients receive attacker-chosen or other users' responses on serverless-plugin routes.\n\n\n\n\nThis issue affects Apache APISIX: from 2.12.0 through 3.17.0.\n\n\n\nUsers are recommended to upgrade to version 3.18.0, which fixes the issue.","status":"published","published":"2026-09-01T08:38:51.634Z","modified":"2026-09-08T08:45:44.882825764Z","updated_at":"2026-11-02T15:28:28.267217Z"}]}}