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CVE-2026-44503

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

CVSS 7 HIGHEPSS 0.5%CWE-601
Vexday Risk Score
21Bajo
Decisión SSVC (CISA)
Track
Sin señal de explotación → monitorear
CVSS 7EPSS 0.5%KEV nãoPoC Nuclei Metasploit Patch
Ciclo de vida
14 may 2026Publicada en NVD
Recomendación: Monitorear — sin señal de explotación por ahora.
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.
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

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