{"cve":{"cve_id":"CVE-2026-28808","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.00773,"epss_percentile":0.54773,"epss_as_of":"2026-10-15","description":"Incorrect Authorization vulnerability in Erlang OTP (inets modules) allows unauthenticated access to CGI scripts protected by directory rules when served via script_alias.\n\nWhen script_alias maps a URL prefix to a directory outside DocumentRoot, mod_auth evaluates directory-based access controls against the DocumentRoot-relative path while mod_cgi executes the script at the ScriptAlias-resolved path. This path mismatch allows unauthenticated access to CGI scripts that directory rules were meant to protect.\n\nThis vulnerability is associated with program files lib/inets/src/http_server/mod_alias.erl, lib/inets/src/http_server/mod_auth.erl, and lib/inets/src/http_server/mod_cgi.erl.\n\nThis issue affects OTP from OTP 17.0 before OTP 26.2.5.19, OTP 27.3.4.10, and OTP 28.4.2, corresponding to inets from 5.10 before 9.1.0.6, 9.3.2.4, and 9.6.2. Whether OTP before OTP 17.0, corresponding to inets before 5.10, is affected is unknown.","published_at":"2026-04-07T12:28:16.056000Z","last_modified_at":"2026-09-08T14:17:21.527000Z","cvss_v3_score":7.4,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","cvss_v3_severity":"HIGH","cvss_v4_score":8.3,"cvss_v4_vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","cvss_v4_severity":"HIGH","ssvc_decision":null,"ssvc_exploitation":"none","ssvc_automatable":true,"ssvc_technical_impact":"partial","cwes":["CWE-863","CWE-551"],"nvd_references":["https://github.com/erlang/otp/security/advisories/GHSA-3vhp-h532-mc3f","https://cna.erlef.org/cves/CVE-2026-28808.html","https://osv.dev/vulnerability/EEF-CVE-2026-28808","https://www.erlang.org/doc/system/versions.html#order-of-versions","https://github.com/erlang/otp/commit/07b8f441ca711f9812fad9e9115bab3c3aa92f79","https://github.com/erlang/otp/commit/8fc71ac6af4fbcc54103bec2983ef22e82942688","https://github.com/erlang/otp/commit/9dfa0c51eac97866078e808dec2183cb7871ff7c"],"vuln_status":"Modified","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-09-09T05:37:24.294436Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"H","value_label":"High"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"N","value_label":"None"}]},"cvss_v4_decoded":{"version":"4.0","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"AT","name":"Attack Requirements","value":"P","value_label":"Present"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"VC","name":"Confidentiality (Vulnerable System)","value":"H","value_label":"High"},{"metric":"VI","name":"Integrity (Vulnerable System)","value":"L","value_label":"Low"},{"metric":"VA","name":"Availability (Vulnerable System)","value":"N","value_label":"None"},{"metric":"SC","name":"Confidentiality (Subsequent System)","value":"N","value_label":"None"},{"metric":"SI","name":"Integrity (Subsequent System)","value":"N","value_label":"None"},{"metric":"SA","name":"Availability (Subsequent System)","value":"N","value_label":"None"}]},"affected":[{"vendor_slug":"erlang","vendor_name":"erlang","product_slug":"erlang-inets","product_name":"erlang/inets","version_start":"5.10","version_start_inclusive":true,"version_end":"9.1.0.6","version_end_inclusive":false,"cpe23_uri":"cpe:2.3:a:erlang:erlang\\/inets:*:*:*:*:*:*:*:*"},{"vendor_slug":"erlang","vendor_name":"erlang","product_slug":"erlang-otp","product_name":"erlang/otp","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/erlang/otp/security/advisories/GHSA-3vhp-h532-mc3f","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://cna.erlef.org/cves/CVE-2026-28808.html","source_type":"MISC","tags":[]},{"url":"https://osv.dev/vulnerability/EEF-CVE-2026-28808","source_type":"MISC","tags":[]},{"url":"https://www.erlang.org/doc/system/versions.html#order-of-versions","source_type":"MISC","tags":[]},{"url":"https://github.com/erlang/otp/commit/07b8f441ca711f9812fad9e9115bab3c3aa92f79","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/erlang/otp/commit/8fc71ac6af4fbcc54103bec2983ef22e82942688","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/erlang/otp/commit/9dfa0c51eac97866078e808dec2183cb7871ff7c","source_type":"PATCH","tags":["patch"]}],"timeline":[{"type":"published","at":"2026-04-07T12:28:16.056000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:52:33.488308Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:52:33.488308Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:52:33.488308Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"ssvc_changed","at":"2026-06-29T23:46:59.033383Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T23:46:59.033383Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T23:46:59.033383Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-30T03:46:12.618407Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-30T03:46:12.618407Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-30T03:46:12.618407Z","label":"CVSS score 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