CVE-2026-49336: microsoft kiota-typescript, изтичане на данни

Описание

Оригинално описание

@microsoft/kiota-http-fetchlibrary provides TypeScript libraries for Kiota-generated API clients. In versions 1.0.0-preview.97 through 1.0.0-preview.101, `@microsoft/kiota-http-fetchlibrary`'s `RedirectHandler` is documented as stripping `Authorization` and `Cookie` from cross-origin redirect targets, but the default `scrubSensitiveHeaders` callback in `RedirectHandlerOptions` uses case-sensitive property deletion (`delete headers.Authorization`, `delete headers.Cookie`) on a headers object that `FetchRequestAdapter.getRequestFromRequestInformation` has already lower-cased. The delete therefore targets keys that do not exist, the scrub is a no-op, and any Bearer token or Cookie attached by a kiota-generated SDK is forwarded to an attacker-controlled host across a 30x redirect. This is reachable in the default middleware chain (`MiddlewareFactory.getDefaultMiddlewares`) with no custom configuration, and applies to every kiota-generated TypeScript SDK that uses `BaseBearerTokenAuthenticationProvider` or any other authentication provider that sets the `Authorization` request header. Version 1.0.0-preview.102 patches the issue.

Засегнати продукти

• microsoft kiota-typescript: >= 1.0.0-preview.97, < 1.0.0-preview.102

Вид слабост

• CWE-178 Неправилна обработка на регистъра на буквите
• CWE-200 Разкриване на чувствителна информация пред неоторизирана страна

История

Други уязвимости в microsoft kiota-typescript

• 7.0CVE-2026-44503

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-49336
• https://nvd.nist.gov/vuln/detail/CVE-2026-49336
• https://github.com/microsoft/kiota-typescript/security/advisories/GHSA-396q-4vc8-28x9
• https://github.com/microsoft/kiota-typescript/commit/09f8bd9b34d68bf412a9b78f6ca7e7961ef14974