{"id":"CVE-2026-47845","aliases":["CLSA-2026-1791529633","CLSA-2026-1791547948","CLSA-2026-1791989666","CLSA-2026-1792505040","CLSA-2026-1793116571","CLSA-2026-1793345120","EUVD-2026-66819","GHSA-c599-m66r-v62w"],"status":"published","title":"Reactor Netty HTTP Server may incorrectly evaluate proxy addresses","description":"In specific scenarios, Reactor Netty HTTP Server may incorrectly evaluate the remote IP address when HAProxy Protocol is enabled. In order for this to happen, the application must be configured to use HAProxy Protocol.\nReactor Netty 1.3.0 - 1.3.6\nReactor Netty 1.1.0 - 1.2.18\nReactor Netty 1.0.52 and earlier","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00294,"percentile":0.2218,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-290"],"published":"2026-08-26T23:28:39Z","modified":"2026-11-02T19:46:31Z","affected":[{"source":"osv","ecosystem":"TuxCare:Maven","package":"io.projectreactor.netty:reactor-netty-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.1.31"},{"fixed":"1.1.31-tuxcare.4"}]}],"versions":["1.1.31","1.1.31-tuxcare.1","1.1.31-tuxcare.2","1.1.31-tuxcare.3"],"bundled":5},{"source":"osv","ecosystem":"TuxCare:Maven","package":"io.projectreactor.netty:reactor-netty-http","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.1.31"},{"fixed":"1.1.31-tuxcare.4"}]}],"versions":["1.1.31","1.1.31-tuxcare.1","1.1.31-tuxcare.2","1.1.31-tuxcare.3"],"bundled":5},{"source":"osv","ecosystem":"TuxCare:Maven","package":"io.projectreactor.netty:reactor-netty-http-brave","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.1.31"},{"fixed":"1.1.31-tuxcare.4"}]}],"versions":["1.1.31","1.1.31-tuxcare.1","1.1.31-tuxcare.2","1.1.31-tuxcare.3"],"bundled":5},{"source":"osv","ecosystem":"TuxCare:Maven","package":"io.projectreactor.netty:reactor-netty-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0.48"},{"fixed":"1.0.48-tuxcare.5"}]}],"versions":["1.0.48","1.0.48-tuxcare.1","1.0.48-tuxcare.2","1.0.48-tuxcare.3","1.0.48-tuxcare.4"],"bundled":5},{"source":"osv","ecosystem":"TuxCare:Maven","package":"io.projectreactor.netty:reactor-netty-http","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0.48"},{"fixed":"1.0.48-tuxcare.5"}]}],"versions":["1.0.48","1.0.48-tuxcare.1","1.0.48-tuxcare.2","1.0.48-tuxcare.3","1.0.48-tuxcare.4"],"bundled":5},{"source":"osv","ecosystem":"TuxCare:Maven","package":"io.projectreactor.netty:reactor-netty-http-brave","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0.48"},{"fixed":"1.0.48-tuxcare.5"}]}],"versions":["1.0.48","1.0.48-tuxcare.1","1.0.48-tuxcare.2","1.0.48-tuxcare.3","1.0.48-tuxcare.4"],"bundled":5},{"source":"osv","ecosystem":"TuxCare:Maven","package":"io.projectreactor.netty:reactor-netty-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.2.18"},{"fixed":"1.2.18-tuxcare.2"}]}],"versions":["1.2.18","1.2.18-tuxcare.1"],"bundled":5},{"source":"osv","ecosystem":"TuxCare:Maven","package":"io.projectreactor.netty:reactor-netty-http","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.2.18"},{"fixed":"1.2.18-tuxcare.2"}]}],"versions":["1.2.18","1.2.18-tuxcare.1"],"bundled":5},{"source":"osv","ecosystem":"TuxCare:Maven","package":"io.projectreactor.netty:reactor-netty-http-brave","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.2.18"},{"fixed":"1.2.18-tuxcare.2"}]}],"versions":["1.2.18","1.2.18-tuxcare.1"],"bundled":5},{"source":"osv","ecosystem":"TuxCare:Maven","package":"io.projectreactor.netty:reactor-netty-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0.32"},{"fixed":"1.0.32-tuxcare.6"}]}],"versions":["1.0.32","1.0.32-tuxcare.1","1.0.32-tuxcare.2","1.0.32-tuxcare.3","1.0.32-tuxcare.4","1.0.32-tuxcare.5"],"bundled":5},{"source":"osv","ecosystem":"TuxCare:Maven","package":"io.projectreactor.netty:reactor-netty-http","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0.32"},{"fixed":"1.0.32-tuxcare.6"}]}],"versions":["1.0.32","1.0.32-tuxcare.1","1.0.32-tuxcare.2","1.0.32-tuxcare.3","1.0.32-tuxcare.4","1.0.32-tuxcare.5"],"bundled":5},{"source":"osv","ecosystem":"TuxCare:Maven","package":"io.projectreactor.netty:reactor-netty-http-brave","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0.32"},{"fixed":"1.0.32-tuxcare.6"}]}],"versions":["1.0.32","1.0.32-tuxcare.1","1.0.32-tuxcare.2","1.0.32-tuxcare.3","1.0.32-tuxcare.4","1.0.32-tuxcare.5"],"bundled":5},{"source":"osv","ecosystem":"TuxCare:Maven","package":"io.projectreactor.netty:reactor-netty-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.1.15"},{"fixed":"1.1.15-tuxcare.3"}]}],"versions":["1.1.15","1.1.15-tuxcare.1","1.1.15-tuxcare.2"],"bundled":5},{"source":"osv","ecosystem":"TuxCare:Maven","package":"io.projectreactor.netty:reactor-netty-http","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.1.15"},{"fixed":"1.1.15-tuxcare.3"}]}],"versions":["1.1.15","1.1.15-tuxcare.1","1.1.15-tuxcare.2"],"bundled":5},{"source":"osv","ecosystem":"TuxCare:Maven","package":"io.projectreactor.netty:reactor-netty-http-brave","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.1.15"},{"fixed":"1.1.15-tuxcare.3"}]}],"versions":["1.1.15","1.1.15-tuxcare.1","1.1.15-tuxcare.2"],"bundled":5},{"source":"osv","ecosystem":"TuxCare:Maven","package":"io.projectreactor.netty:reactor-netty","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0.34"},{"fixed":"1.0.34-tuxcare.1"}]}],"versions":["1.0.34"],"bundled":8},{"sourc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netty"},{"vendor":"vmware","product":"reactor netty"}],"references":[{"url":"https://spring.io/security/cve-2026-47845","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47845"},{"url":"https://github.com/advisories/GHSA-c599-m66r-v62w"}],"sources":{"cve":[{"id":"CVE-2026-47845","title":"Reactor Netty HTTP Server may incorrectly evaluate proxy addresses","description":"In specific scenarios, Reactor Netty HTTP Server may incorrectly evaluate the remote IP address when HAProxy Protocol is enabled. In order for this to happen, the application must be configured to use HAProxy Protocol.\nReactor Netty 1.3.0 - 1.3.6\nReactor Netty 1.1.0 - 1.2.18\nReactor Netty 1.0.52 and earlier","status":"published","published":"2026-08-26T23:28:39.36Z","modified":"2026-08-27T14:02:35.899Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T13:36:40.478484Z"}],"euvd":[{"id":"EUVD-2026-66819","description":"In specific scenarios, Reactor Netty HTTP Server may incorrectly evaluate the remote IP address when HAProxy Protocol is enabled. In order for this to happen, the application must be configured to use HAProxy Protocol.\nReactor Netty 1.3.0 - 1.3.6\nReactor Netty 1.1.0 - 1.2.18\nReactor Netty 1.0.52 and earlier","status":"published","published":"2026-08-26T23:28:39Z","modified":"2026-08-27T14:02:35Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T18:01:28.581047Z"}],"ghsa":[{"id":"GHSA-c599-m66r-v62w","title":"In specific scenarios, Reactor Netty HTTP Server may incorrectly evaluate the remote IP address...","description":"In specific scenarios, Reactor Netty HTTP Server may incorrectly evaluate the remote IP address when HAProxy Protocol is enabled. In order for this to happen, the application must be configured to use HAProxy Protocol.\nReactor Netty 1.3.0 - 1.3.6\nReactor Netty 1.1.0 - 1.2.18\nReactor Netty 1.0.52 and earlier","status":"published","published":"2026-08-27T03:32:58Z","modified":"2026-08-27T18:32:07Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T15:11:03.315113Z"}],"nvd":[{"id":"CVE-2026-47845","description":"In specific scenarios, Reactor Netty HTTP Server may incorrectly evaluate the remote IP address when HAProxy Protocol is enabled. In order for this to happen, the application must be configured to use HAProxy Protocol.\nReactor Netty 1.3.0 - 1.3.6\nReactor Netty 1.1.0 - 1.2.18\nReactor Netty 1.0.52 and earlier","status":"published","published":"2026-08-27T01:17:31.827Z","modified":"2026-09-04T19:06:58.447Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T14:12:42.035353Z"}],"osv":[{"id":"CLSA-2026-1791529633","title":"TuxCare security update for io.projectreactor.netty (5 CVEs)","description":"TuxCare rebuilt 3 io.projectreactor.netty packages to address 5 CVEs. Fixed in 1.1.31-tuxcare.4.","status":"published","published":"2026-10-09T07:07:13Z","modified":"2026-11-02T19:46:27.100145141Z","updated_at":"2026-11-02T20:29:13.152182Z"},{"id":"CLSA-2026-1791547948","title":"TuxCare security update for io.projectreactor.netty (5 CVEs)","description":"TuxCare rebuilt 3 io.projectreactor.netty packages to address 5 CVEs. Fixed in 1.0.48-tuxcare.5.","status":"published","published":"2026-10-09T12:12:28Z","modified":"2026-11-02T19:46:26.379358987Z","updated_at":"2026-11-02T20:29:17.805906Z"},{"id":"CLSA-2026-1791989666","title":"TuxCare security update for io.projectreactor.netty (5 CVEs)","description":"TuxCare rebuilt 3 io.projectreactor.netty packages to address 5 CVEs. Fixed in 1.2.18-tuxcare.2.","status":"published","published":"2026-10-14T14:54:26Z","modified":"2026-11-02T19:46:27.828680262Z","updated_at":"2026-11-02T20:29:13.152182Z"},{"id":"CLSA-2026-1792505040","title":"TuxCare security update for io.projectreactor.netty (5 CVEs)","description":"TuxCare rebuilt 3 io.projectreactor.netty packages to address 5 CVEs. Fixed in 1.0.32-tuxcare.6.","status":"published","published":"2026-10-20T14:04:00Z","modified":"2026-11-02T19:46:29.903938891Z","updated_at":"2026-11-02T20:28:59.01272Z"},{"id":"CLSA-2026-1793116571","title":"TuxCare security update for io.projectreactor.netty (5 CVEs)","description":"TuxCare rebuilt 3 io.projectreactor.netty packages to address 5 CVEs. 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