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CVE PROGRAM SOURCE RECORD7.0 High

CVE-2026-44503

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

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

microsoft kiota-java

  • < 1.9.1affected

microsoft Microsoft.Kiota.Abstractions

  • < 1.22.0affected

microsoft github.com/microsoft/kiota-http-go

  • < 1.5.5affected

microsoft kiota-typescript

  • < 1.0.0-preview.100affected

microsoft microsoft-kiota-abstractions

  • < 1.9.1affected

microsoft microsoft-kiota-http

  • < 1.9.9affected

References