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CVE-2026-44503

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

Description (CNA)

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 (CNA)

Vendor / productVersions
microsoft / kiota-javaaffected < 1.9.1
microsoft / Microsoft.Kiota.Abstractionsaffected < 1.22.0
microsoft / github.com/microsoft/kiota-http-goaffected < 1.5.5
microsoft / kiota-typescriptaffected < 1.0.0-preview.100
microsoft / microsoft-kiota-abstractionsaffected < 1.9.1
microsoft / microsoft-kiota-httpaffected < 1.9.9

CWE

CWE-601

References

ADP enrichment

CISA-ADP

No English description supplied.