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CVE-2026-44503 The RedirectHandler middleware in microsoft/kiota-java (com.microsoft.kiota:microsoft-kiota-http-okHttp v1.9.0) and…

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 and versions

Product Affected versions Fixed in
kiota-java 1.9 earliest → < 1.9.1 1.9.1
Microsoft.Kiota.Abstractions 1.22 earliest → < 1.22.0 1.22.0
github.com/microsoft/kiota-http-go 1.5 earliest → < 1.5.5 1.5.5
kiota-typescript 1.0 earliest → < 1.0.0-preview.100 1.0.0-preview.100
microsoft-kiota-abstractions 1.9 earliest → < 1.9.1 1.9.1
microsoft-kiota-http 1.9 earliest → < 1.9.9 1.9.9

References

Timeline

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