CVE-2026-44503 - Kiota abstractions RedirectHandler leaks Cookie/Proxy-Authorization headers on cross-host redirect

CVE-2026-44503 - Kiota abstractions RedirectHandler leaks Cookie/Proxy-Authorization headers on cross-host redirect

https://cvefeed.io/rssfeed/latest.atom / Thu, 05/14/2026 - 20:23
CVE ID :CVE-2026-44503
Published : May 14, 2026, 4:16 p.m. | 1 hour, 7 minutes ago
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.
Severity: 7.0 | HIGH
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Kenya Education Network CERT(KENET-CERT) is a Cybersecurity Emergency Response Team and Co-ordination Center operated by the National Research and Education Network of Kenya. KENET-CERT coordination center promotes awareness on cybersecurity incidences as well as coordinates and assists member institutions in responding effectively to cyber security threats and incidences. KENET-CERT works closely with Kenya's National CIRT coordination center (CIRT/CC) as a sector CIRT for the academic institutions. KENET promotes use of ICT in Teaching, Learning and Research in Higher Education Institutions in Kenya. KENET aims to interconnect all the Universities, Tertiary and Research Institutions in Kenya by setting up a cost effective and sustainable private network with high speed access to the global Internet. KENET also facilitates electronic communication among students and faculties in member institutions, share learning and teaching resources by collaboration in Research and Development of Educational content.