CVE-2026-11856

CVE-2026-11856 describes a cross-origin Digest authentication state leak in libcurl: when performing a first transfer to hostA with Digest auth and then reusing the same handle for a second transfer to hostB, libcurl may forward the Authorization header intended for hostA to hostB. The issue is d...

EUVD-2026-41501

Successfully using libcurl to do a transfer to a specific HTTP origin hostA with Digest authentication and then changing the origin to a different one hostB for a second transfer, reusing the same handle, makes libcurl wrongly pass on the Authorization: header field meant for hostA, to hostB...

CVE-2026-54673 electron-updater: Cross-origin redirect leaks `PRIVATE-TOKEN` and mixed-case `Authorization` credentials in `builder-util-runtime`

electron-updater allows for automatic updates for Electron apps. Prior to 9.7.0, the HTTP redirect handler HttpExecutor.prepareRedirectUrlOptions only stripped a credential header whose key string matched exactly lowercase "authorization", exposing credentials. Other credential-bearing headers —...

CVE-2026-54673

The CVE affects electron-updater (builder-util-runtime component) prior to version 9.7.0. The root cause is that HttpExecutor.prepareRedirectUrlOptions only stripped a credential header named exactly the lowercase string “authorization.” Other credential-bearing headers, notably PRIVATE-TOKEN and...

CVE-2026-50017

pnpm is a package manager. Prior to 10.34.0 and 11.4.0, pnpm can send user-level unscoped npm authentication credentials to a registry chosen by a repository-local .npmrc file. In the reproduced case, the user's npm config contains a default registry and an unscoped authToken. The repository does...

keycloak: Keycloak: Denial of Service via malformed Authorization header

A flaw was found in Keycloak's ClientRegistrationAuth component. A remote unauthenticated attacker can exploit this vulnerability by sending a specially crafted POST request with a malformed 'Authorization: Bearer' header to any client registration endpoint. This can lead to an...

CVE-2026-50017

pnpm is affected prior to versions 10.34.0 and 11.4.0. In these versions, during normal metadata/install workflows, pnpm can bind user-level unscoped npm authentication credentials to a repository‑selected registry (as configured by a repository-local .npmrc) and transmit them in an Authorization...

UBUNTU-CVE-2026-11856

Successfully using libcurl to do a transfer to a specific HTTP origin hostA with Digest authentication and then changing the origin to a different one hostB for a second transfer, reusing the same handle, makes libcurl wrongly pass on the Authorization: header field meant for hostA, to hostB...

CURL-CVE-2026-11856 cross-origin Digest auth state leak

Successfully using libcurl to do a transfer to a specific HTTP origin hostA with Digest authentication and then changing the origin to a different one hostB for a second transfer, reusing the same handle, makes libcurl wrongly pass on the Authorization: header field meant for hostA, to hostB...

CVE-2026-54317

Home Assistant is open source home automation software that puts local control and privacy first. Prior to 2026.6.0, the Konnected integration registers an HTTP endpoint, KonnectedView homeassistant/components/konnected/init.py, that is marked as not requiring authentication requiresauth = False....

CVE-2026-49336

@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, bu...

Astra Linux – Vulnerability in libsoup2.4

A flaw was discovered in libsoup. When libsoup clients encounter an HTTP redirect, they mistakenly send the HTTP Authorization header to the new host that the redirection points to. This allows the new host to impersonate the user with respect to the original host that issued the redirect...

Astra Linux – Vulnerability in requests

Requests is an HTTP library. Since Requests 2.3.0, Requests has been leaking Proxy-Authorization headers to destination servers when redirected to an HTTPS endpoint. This issue arises due to the way we use rebuildproxies to reattach the Proxy-Authorization header to requests. For HTTP connections...

Astra Linux – Vulnerability in python-urllib3

In urllib3 before version 1.24.2, the authorization HTTP header is not removed when following a cross-origin redirect i.e., a redirect that differs in host, port, or scheme. This can allow credentials in the authorization header to be exposed to unintended hosts or transmitted in cleartext. NOTE:...

PT-2026-51008

Name of the Vulnerable Software and Affected Versions @microsoft/kiota-http-fetchlibrary versions 1.0.0-preview.97 through 1.0.0-preview.101 Description The RedirectHandler in the library fails to properly remove sensitive headers during cross-origin redirects. While it is intended to strip...

EUVD-2026-37766

undici vulnerable to cross-user information disclosure via shared cache whitespace bypass...

CVE-2026-9678

Impact: Undici's cache interceptor incorrectly classifies some responses as cacheable when the upstream Cache-Control header uses whitespace-padded qualified private or no-cache field names such as private=" authorization" or no-cache="\tauthorization". The parser preserves the surrounding...

CVE-2026-9678 undici vulnerable to cross-user information disclosure via shared cache whitespace bypass

Impact: Undici's cache interceptor incorrectly classifies some responses as cacheable when the upstream Cache-Control header uses whitespace-padded qualified private or no-cache field names such as private=" authorization" or no-cache="\tauthorization". The parser preserves the surrounding...

GHSA-3X9G-8VMP-WQVF Tornado: Authorization header forwarded across cross-origin redirects in SimpleAsyncHTTPClient

Summary When SimpleAsyncHTTPClient follows a 3xx redirect, it shallow-copies the original HTTPRequest, rewrites the URL, decrements maxredirects, and removes only the Host header. It does not clear Authorization, authusername, authpassword, or authmode when the redirect target changes origin. As ...

Tornado: Authorization header forwarded across cross-origin redirects in SimpleAsyncHTTPClient

Summary When SimpleAsyncHTTPClient follows a 3xx redirect, it shallow-copies the original HTTPRequest, rewrites the URL, decrements maxredirects, and removes only the Host header. It does not clear Authorization, authusername, authpassword, or authmode when the redirect target changes origin. As ...