{"cve":{"cve_id":"CVE-2026-44503","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":0.00505,"epss_percentile":0.39116,"epss_as_of":"2026-06-23","description":"The RedirectHandler middleware in microsoft/kiota-java (com.microsoft.kiota:microsoft-kiota-http-okHttp v1.9.0) and other Kiota libraries fails to strip sensitive HTTP headers when following 3xx redirects to a different host or scheme. Only the Authorization header is removed; Cookie, Proxy-Authorization, and all custom headers are forwarded to the redirect target.","published_at":"2026-05-14T15:58:57.772000Z","last_modified_at":null,"cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"cvss_v4_score":7.0,"cvss_v4_vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N","cvss_v4_severity":"HIGH","ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-601"],"nvd_references":["https://github.com/microsoft/kiota-java/security/advisories/GHSA-7j59-v9qr-6fq9"],"vuln_status":null,"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":"2026-06-28T23:30:29.004056Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":null,"metrics":[]},"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":"P","value_label":"Passive"},{"metric":"VC","name":"Confidentiality (Vulnerable System)","value":"H","value_label":"High"},{"metric":"VI","name":"Integrity (Vulnerable System)","value":"N","value_label":"None"},{"metric":"VA","name":"Availability (Vulnerable System)","value":"N","value_label":"None"},{"metric":"SC","name":"Confidentiality (Subsequent System)","value":"H","value_label":"High"},{"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":"microsoft","vendor_name":"Microsoft","product_slug":"github.com-microsoft-kiota-http-go","product_name":"github.com/microsoft/kiota-http-go","version_start":"< 1.5.5","version_start_inclusive":true,"version_end":"< 1.5.5","version_end_inclusive":true,"cpe23_uri":"cve5:microsoft:github.com-microsoft-kiota-http-go:< 1.5.5:< 1.5.5"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"kiota-java","product_name":"kiota-java","version_start":"< 1.9.1","version_start_inclusive":true,"version_end":"< 1.9.1","version_end_inclusive":true,"cpe23_uri":"cve5:microsoft:kiota-java:< 1.9.1:< 1.9.1"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"kiota-typescript","product_name":"kiota-typescript","version_start":"< 1.0.0-preview.100","version_start_inclusive":true,"version_end":"< 1.0.0-preview.100","version_end_inclusive":true,"cpe23_uri":"cve5:microsoft:kiota-typescript:< 1.0.0-preview.100:< 1.0.0-preview.100"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"microsoft-kiota-abstractions","product_name":"microsoft-kiota-abstractions","version_start":"< 1.9.1","version_start_inclusive":true,"version_end":"< 1.9.1","version_end_inclusive":true,"cpe23_uri":"cve5:microsoft:microsoft-kiota-abstractions:< 1.9.1:< 1.9.1"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"microsoft.kiota.abstractions","product_name":"Microsoft.Kiota.Abstractions","version_start":"< 1.22.0","version_start_inclusive":true,"version_end":"< 1.22.0","version_end_inclusive":true,"cpe23_uri":"cve5:microsoft:microsoft.kiota.abstractions:< 1.22.0:< 1.22.0"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"microsoft-kiota-http","product_name":"microsoft-kiota-http","version_start":"< 1.9.9","version_start_inclusive":true,"version_end":"< 1.9.9","version_end_inclusive":true,"cpe23_uri":"cve5:microsoft:microsoft-kiota-http:< 1.9.9:< 1.9.9"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/microsoft/kiota-java/security/advisories/GHSA-7j59-v9qr-6fq9","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2026-05-14T15:58:57.772000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:54:29.867911Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:54:29.867911Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:54:29.867911Z","label":"CVSS score revised","source":"cvelistv5"}]}