{"id":"CVE-2026-104939","revision":null,"records":[{"revision":"8ed69ef06a21419b902dcb1d45d9af25","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-104939","aliases":[],"title":"NGINX Ingress Controller vulnerability","description":"Description\nNGINX Ingress Controller has a vulnerability when implementing an externalAuth policy for ingress. NGINX Ingress Controller may mishandle the HTTP response from an OAuth IdP and allow an attacker to acquire unauthenticated access to protected paths before the proper external authentication can happen.\n\n\n\nImpact\nThis vulnerability may allow remote attackers \n\nunauthenticated\n\n access to protected \n\npaths.\u00A0There 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.","state":0,"publishedAt":"2026-10-14T14:40:30.052+00:00","modifiedAt":"2026-10-15T16:43:46.19+00:00","affected":[{"ecosystem":"Vendor product","name":"NGINX Ingress Controller","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"unknown\",\n                    \"modules\": [\n                        \"NIC\"\n                    ],\n                    \"product\": \"NGINX Ingress Controller\",\n                    \"vendor\": \"F5\",\n                    \"versions\": [\n                        {\n                            \"lessThan\": \"5.7.0\",\n                            \"status\": \"affected\",\n                            \"version\": \"5.6.0\",\n                            \"versionType\": \"custom\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5,"severity":"HIGH"},{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","score":8.7,"severity":"HIGH"}],"references":["https://my.f5.com/manage/s/article/K000162617"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-104939","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-104939","identifiers":["CVE-2026-104939"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-09T15:04:17.9226009+00:00","complete":true,"records":1769,"lastAttemptAt":"2026-11-09T15:04:17.9226009+00:00","lastSuccessAt":"2026-11-09T15:04:18.1621362+00:00","error":null,"lastVerifiedAt":"2026-11-09T15:04:18.1621395+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-24e6fde7b744113daefb8f6135035fb8a5c69c9617c9c0d40574a0376532ffd3-49ad16fb0d34ddf0ae41aa46fedfe58e1df7005677e5f3c7ea3ce3ccbb1e0589","complete":true,"records":421457,"lastAttemptAt":"2026-11-09T15:02:15.2169676+00:00","lastSuccessAt":"2026-11-09T15:02:15.1121329+00:00","error":null,"lastVerifiedAt":"2026-11-09T15:02:15.2169676+00:00","snapshotPublishedAt":"2026-11-09T14:25:18+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-1cda4ef84588402c81419af30caa5cf1","complete":false,"records":13655,"lastAttemptAt":"2026-11-09T15:16:31.927767+00:00","lastSuccessAt":"2026-11-09T15:16:31.919+00:00","error":"9 identifier lookups failed; latest failures include HTTP 403. Other identifiers were checked independently.","lastVerifiedAt":"2026-11-09T15:16:31.919+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13698,"expectedIdentifiers":13707,"failedIdentifiers":9},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-09T15:04:17.9226009+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-09T15:04:17.9226009+00:00","lastSuccessAt":"2026-11-09T15:04:18.1628494+00:00","error":null,"lastVerifiedAt":"2026-11-09T15:04:18.1628497+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-122e73413fbf41e4b6ede4e4f5660885","complete":true,"records":13667,"lastAttemptAt":"2026-11-09T15:04:19.7498555+00:00","lastSuccessAt":"2026-11-09T15:04:19.744+00:00","error":null,"lastVerifiedAt":"2026-11-09T15:04:19.744+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13707,"expectedIdentifiers":13707,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-980593e6977a6d1b4fb1eed5a1ffe88a468736f89f0a06f710924ad59132c023","complete":true,"records":9914,"lastAttemptAt":"2026-11-09T15:04:17.5233893+00:00","lastSuccessAt":"2026-11-08T11:07:07.068788+00:00","error":null,"lastVerifiedAt":"2026-11-09T15:04:17.5233893+00:00","snapshotPublishedAt":"2026-11-08T11:02:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-fde804134ecdda0ddd5ff5c26ee1fff5a6fa659311f7ef2e51c6ad54964db0e2","complete":true,"records":1971,"lastAttemptAt":"2026-11-09T15:02:16.0914115+00:00","lastSuccessAt":"2026-11-06T19:03:17.0399903+00:00","error":null,"lastVerifiedAt":"2026-11-09T15:02:16.0914115+00:00","snapshotPublishedAt":"2026-11-06T18:17:57+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-c905fa1bd26c7b261e77cc7202a86dc766ff31c2b096b501f3bf44f561e34970","complete":true,"records":3063,"lastAttemptAt":"2026-11-09T15:04:17.8913143+00:00","lastSuccessAt":"2026-11-09T12:02:21.7931207+00:00","error":null,"lastVerifiedAt":"2026-11-09T15:04:17.8913143+00:00","snapshotPublishedAt":"2026-11-09T11:18:00+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-c5775280c9de3927e2aad763cbfbebcc2ac79b903f8410c65ab9bc1096f5fa3d","complete":true,"records":231299,"lastAttemptAt":"2026-11-09T15:04:17.3926133+00:00","lastSuccessAt":"2026-11-09T15:04:15.9950254+00:00","error":null,"lastVerifiedAt":"2026-11-09T15:04:17.3926133+00:00","snapshotPublishedAt":"2026-11-09T14:33:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}