CVE Catalog

CVE-2026-44503

High
Published: Translated: NVD NIST

Summary

The RedirectHandler middleware in the microsoft/kiota-java library (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.

Risk Assessment

The forwarding of sensitive HTTP headers may lead to the exposure of credentials and other information, posing a security risk to the organization. Attackers could exploit these headers to hijack sessions or gain access to resources.

Recommendation

It is recommended to update to the latest version of the Kiota library that addresses header handling during redirects. Additionally, it is advisable to review and limit the use of sensitive headers in applications utilizing this library.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS