{"id":"CVE-2026-49231","aliases":["BIT-apisix-2026-49231","EUVD-2026-38020","GHSA-3cm7-pvjf-2x7q"],"status":"published","title":"Apache APISIX: Identity spoofing issue in APISIX opa plugin","description":"Authentication Bypass by Spoofing vulnerability in opa plugin.\n\nAn attacker could relay spoofed identity headers to upstream capitalising on non-default configuration in opa plugin.\n\nThis could allow the attacker to assume higher privileges on the upstream service.\nThis issue affects Apache APISIX: from 3.5.0 through 3.16.0.\n\nUsers are recommended to upgrade to version 3.17.0, which fixes the issue.","severity":{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00575,"percentile":0.47732,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-290"],"published":"2026-06-19T13:14:52Z","modified":"2026-10-28T02:30:46Z","fixes":[{"ecosystem":"Bitnami","package":"apisix","fixed_in":["3.18.0"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"apisix","ranges":[{"type":"SEMVER","events":[{"introduced":"3.5.0"},{"fixed":"3.18.0"}]}]}],"products":[{"vendor":"apache","product":"apisix"},{"vendor":"apache software foundation","product":"apache apisix"}],"references":[{"url":"https://lists.apache.org/thread/s1jd1vxm59p6ghx47xhmpjdk1cobo4hn","tags":["vendor-advisory","Vendor Advisory","Mailing List","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2026/06/19/13","tags":["Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49231","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-3cm7-pvjf-2x7q"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49231.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-49231","title":"Apache APISIX: Identity spoofing issue in APISIX opa plugin","description":"Authentication Bypass by Spoofing vulnerability in opa plugin.\n\nAn attacker could relay spoofed identity headers to upstream capitalising on non-default configuration in opa plugin.\n\nThis could allow the attacker to assume higher privileges on the upstream service.\nThis issue affects Apache APISIX: from 3.5.0 through 3.16.0.\n\nUsers are recommended to upgrade to version 3.17.0, which fixes the issue.","status":"published","published":"2026-06-19T13:14:52.1Z","modified":"2026-06-22T16:20:09.284Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"low","assessor":"cna"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T13:34:59.78118Z"}],"euvd":[{"id":"EUVD-2026-38020","description":"Authentication Bypass by Spoofing vulnerability in opa plugin.\n\nAn attacker could relay spoofed identity headers to upstream capitalising on non-default configuration in opa plugin.\n\nThis could allow the attacker to assume higher privileges on the upstream service.\nThis issue affects Apache APISIX: from 3.5.0 through 3.16.0.\n\nUsers are recommended to upgrade to version 3.17.0, which fixes the issue.","status":"published","published":"2026-06-19T13:14:52Z","modified":"2026-06-22T16:20:09Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"low"}],"updated_at":"2026-11-02T18:20:34.745289Z"}],"ghsa":[{"id":"GHSA-3cm7-pvjf-2x7q","title":"Authentication Bypass by Spoofing vulnerability in opa plugin.\n\nAn attacker could relay spoofed...","description":"Authentication Bypass by Spoofing vulnerability in opa plugin.\n\nAn attacker could relay spoofed identity headers to upstream capitalising on non-default configuration in opa plugin.\n\nThis could allow the attacker to assume higher privileges on the upstream service.\nThis issue affects Apache APISIX: from 3.5.0 through 3.16.0.\n\nUsers are recommended to upgrade to version 3.17.0, which fixes the issue.","status":"published","published":"2026-06-19T15:33:17Z","modified":"2026-06-23T15:32:31Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/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":"low"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T15:08:56.903887Z"}],"nvd":[{"id":"CVE-2026-49231","description":"Authentication Bypass by Spoofing vulnerability in opa plugin.\n\nAn attacker could relay spoofed identity headers to upstream capitalising on non-default configuration in opa plugin.\n\nThis could allow the attacker to assume higher privileges on the upstream service.\nThis issue affects Apache APISIX: from 3.5.0 through 3.16.0.\n\nUsers are recommended to upgrade to version 3.17.0, which fixes the issue.","status":"published","published":"2026-06-19T14:16:23.543Z","modified":"2026-10-26T11:10:00.157Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/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":"low","assessor":"secondary"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T14:12:24.912854Z"}],"osv":[{"id":"CVE-2026-49231","title":"Apache APISIX: Identity spoofing issue in APISIX opa plugin","description":"Authentication Bypass by Spoofing vulnerability in opa plugin.\n\nAn attacker could relay spoofed identity headers to upstream capitalising on non-default configuration in opa plugin.\n\nThis could allow the attacker to assume higher privileges on the upstream service.\nThis issue affects Apache APISIX: from 3.5.0 through 3.16.0.\n\nUsers are recommended to upgrade to version 3.17.0, which fixes the issue.","status":"published","published":"2026-06-19T13:14:52.1Z","modified":"2026-10-28T02:30:46.736497408Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"low"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T15:45:07.060148Z"},{"id":"BIT-apisix-2026-49231","title":"Apache APISIX: Identity spoofing issue in APISIX opa plugin","description":"Authentication Bypass by Spoofing vulnerability in opa plugin.\n\nAn attacker could relay spoofed identity headers to upstream capitalising on non-default configuration in opa plugin.\n\nThis could allow the attacker to assume higher privileges on the upstream service.\nThis issue affects Apache APISIX: from 3.5.0 through 3.16.0.\n\nUsers are recommended to upgrade to version 3.17.0, which fixes the issue.","status":"published","published":"2026-06-23T14:37:50.523Z","modified":"2026-09-10T16:01:08.18396178Z","updated_at":"2026-11-02T15:28:28.267217Z"}]}}