{"id":"CVE-2026-90439","aliases":["ALPINE-CVE-2026-90439","BELL-CVE-2026-90439","BIT-nginx-2026-90439","BIT-nginx-gateway-2026-90439","DEBIAN-CVE-2026-90439","EUVD-2026-78585","GHSA-fjgw-pmcm-g7j7","MGASA-2026-0499","RHSA-2026:67977","UBUNTU-CVE-2026-90439","openSUSE-SU-2026:11807-1"],"status":"published","title":"NGINX ngx_http_v3_module vulnerability","description":"NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_v3_module module. When using HTTP/3 with OpenSSL versions \u003c= OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner that is beyond the attacker's control. This may cause a heap buffer overflow in the NGINX worker process leading to a restart and/or limited data corruption.\n\nImpact:\nThis vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or limited data corruption. There is no control plane exposure; this is a data plane issue only.\n\n\n\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00256,"percentile":0.1743,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-122"],"published":"2026-09-15T14:27:26Z","modified":"2026-10-28T07:15:10Z","fixes":[{"ecosystem":"Alpine:v3.24","package":"nginx","fixed_in":["1.30.6-r0"],"sources":["osv"]},{"ecosystem":"Alpaquita:23","package":"nginx","fixed_in":["1.30.6-r0"],"sources":["osv"]},{"ecosystem":"Alpaquita:23","package":"nginx-base","fixed_in":["1.30.6-r0"],"sources":["osv"]},{"ecosystem":"Alpaquita:25","package":"nginx","fixed_in":["1.30.6-r0"],"sources":["osv"]},{"ecosystem":"Alpaquita:25","package":"nginx-base","fixed_in":["1.30.6-r0"],"sources":["osv"]},{"ecosystem":"Alpaquita:stream","package":"nginx","fixed_in":["1.30.6-r0"],"sources":["osv"]},{"ecosystem":"Alpaquita:stream","package":"nginx-base","fixed_in":["1.30.6-r0"],"sources":["osv"]},{"ecosystem":"BellSoft 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plus"}],"references":[{"url":"https://my.f5.com/manage/s/article/K000162604","tags":["vendor-advisory","web","article","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90439","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-fjgw-pmcm-g7j7"},{"url":"https://security.alpinelinux.org/vuln/CVE-2026-90439","tags":["advisory"]},{"url":"https://docs.bell-sw.com/security/cves/CVE-2026-90439","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-90439","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2026-0499.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=36350","tags":["report"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/message/JMZSWT7GG4DHCGJVXSFXVBFASZL3EYRJ/","tags":["web"]},{"url":"https://access.redhat.com/errata/RHSA-2026:67977","tags":["advisory"]},{"url":"https://images.redhat.com/","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-90439","tags":["report"]},{"url":"https://access.redhat.com/security/updates/classification/","tags":["article"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_67977.json","tags":["advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2533856","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90439","tags":["advisory","report"]},{"url":"https://ubuntu.com/security/CVE-2026-90439","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-90439","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-90439","title":"NGINX ngx_http_v3_module vulnerability","description":"NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_v3_module module. When using HTTP/3 with OpenSSL versions \u003c= OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner that is beyond the attacker's control. This may cause a heap buffer overflow in the NGINX worker process leading to a restart and/or limited data corruption.\n\nImpact:\nThis vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or limited data corruption. There is no control plane exposure; this is a data plane issue only.\n\n\n\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated.","status":"published","published":"2026-09-15T14:27:26.047Z","modified":"2026-09-16T15:09:43.403Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T13:45:47.885058Z"}],"euvd":[{"id":"EUVD-2026-78585","description":"NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_v3_module module. When using HTTP/3 with OpenSSL versions \u003c= OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner that is beyond the attacker's control. This may cause a heap buffer overflow in the NGINX worker process leading to a restart and/or limited data corruption.\n\nImpact:\nThis vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or limited data corruption. There is no control plane exposure; this is a data plane issue only.\n\n\n\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated.","status":"published","published":"2026-09-15T14:27:26Z","modified":"2026-09-16T15:09:43Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T17:28:15.854171Z"}],"ghsa":[{"id":"GHSA-fjgw-pmcm-g7j7","title":"NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_v3_module module. When...","description":"NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_v3_module module. When using HTTP/3 with OpenSSL versions \u003c= OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner that is beyond the attacker's control. This may cause a heap buffer overflow in the NGINX worker process leading to a restart and/or limited data corruption.\n\nImpact:\nThis vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or limited data corruption. There is no control plane exposure; this is a data plane issue only.\n\n\n\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated.","status":"published","published":"2026-09-15T15:32:13Z","modified":"2026-09-15T15:32:20Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","level":"medium"},{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/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":"medium"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T15:11:54.134441Z"}],"nvd":[{"id":"CVE-2026-90439","description":"NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_v3_module module. When using HTTP/3 with OpenSSL versions \u003c= OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner that is beyond the attacker's control. This may cause a heap buffer overflow in the NGINX worker process leading to a restart and/or limited data corruption.\n\nImpact:\nThis vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or limited data corruption. There is no control plane exposure; this is a data plane issue only.\n\n\n\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated.","status":"published","published":"2026-09-15T15:17:27.023Z","modified":"2026-09-18T19:34:36.657Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/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":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:12:47.668237Z"}],"osv":[{"id":"ALPINE-CVE-2026-90439","description":"NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_v3_module module. When using HTTP/3 with OpenSSL versions \u003c= OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner that is beyond the attacker's control. This may cause a heap buffer overflow in the NGINX worker process leading to a restart and/or limited data corruption.\n\nImpact:\nThis vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or limited data corruption. There is no control plane exposure; this is a data plane issue only.\n\n\n\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated.","status":"published","published":"2026-09-15T15:17:27.023Z","modified":"2026-10-22T11:30:02.502475511Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/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":"medium"}],"updated_at":"2026-11-02T15:27:51.196609Z"},{"id":"BELL-CVE-2026-90439","status":"published","published":"2026-10-21T14:01:18.83174Z","modified":"2026-10-28T07:15:10.9670508Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T15:28:27.164451Z"},{"id":"DEBIAN-CVE-2026-90439","description":"NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_v3_module module. When using HTTP/3 with OpenSSL versions \u003c= OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner that is beyond the attacker's control. This may cause a heap buffer overflow in the NGINX worker process leading to a restart and/or limited data corruption.  Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or limited data corruption. There is no control plane exposure; this is a data plane issue only.     Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.","status":"published","published":"2026-09-15T15:17:27.023Z","modified":"2026-10-01T03:03:53.027734824Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/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":"medium"}],"updated_at":"2026-11-02T15:46:06.410207Z"},{"id":"RHSA-2026:67977","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update","status":"published","published":"2026-09-22T10:19:01Z","modified":"2026-10-02T10:22:58Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T15:53:22.406388Z"},{"id":"UBUNTU-CVE-2026-90439","description":"(NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ ...)","status":"withdrawn","published":"2026-10-22T00:00:00Z","modified":"2026-10-24T21:15:02.975549696Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","level":"medium"},{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T16:57:35.676249Z"},{"id":"BIT-nginx-2026-90439","title":"NGINX ngx_http_v3_module vulnerability","description":"NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_v3_module module. When using HTTP/3 with OpenSSL versions \u003c= OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner that is beyond the attacker's control. This may cause a heap buffer overflow in the NGINX worker process leading to a restart and/or limited data corruption.\n\nImpact:\nThis vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or limited data corruption. There is no control plane exposure; this is a data plane issue only.\n\n\n\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated.","status":"published","published":"2026-09-25T12:27:27.067Z","modified":"2026-09-26T09:15:02.723368519Z","updated_at":"2026-11-02T15:28:34.007508Z"},{"id":"BIT-nginx-gateway-2026-90439","title":"NGINX ngx_http_v3_module vulnerability","description":"NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_v3_module module. When using HTTP/3 with OpenSSL versions \u003c= OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner that is beyond the attacker's control. This may cause a heap buffer overflow in the NGINX worker process leading to a restart and/or limited data corruption.\n\nImpact:\nThis vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or limited data corruption. There is no control plane exposure; this is a data plane issue only.\n\n\n\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated.","status":"published","published":"2026-09-25T12:27:31.697Z","modified":"2026-09-26T09:15:02.729645666Z","updated_at":"2026-11-02T15:28:34.007508Z"},{"id":"MGASA-2026-0499","title":"Updated nginx package fixes a security vulnerability","description":"NGINX ngx_http_v3_module vulnerability. (CVE-2026-90439)\n","status":"published","published":"2026-10-13T01:20:53Z","modified":"2026-10-13T01:30:03.140977316Z","updated_at":"2026-11-02T15:49:43.795591Z"},{"id":"openSUSE-SU-2026:11807-1","title":"nginx-1.31.6-1.1 on GA media","description":"These are all security issues fixed in the nginx-1.31.6-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-09-17T00:00:00Z","modified":"2026-09-18T18:23:08.729679845Z","updated_at":"2026-11-02T16:58:39.516824Z"}]}}