curl: libcurl: Information disclosure via incorrect Proxy-Authorization header reuse

A flaw was found in libcurl. When a user performs a transfer over an HTTP proxy using Digest authentication and then reuses the same handle for a second transfer with a different proxy host, libcurl incorrectly sends the Proxy-Authorization header intended for the first proxy to the second proxy...

MGASA-2026-0150 Updated perl-libwww-perl & perl-HTTP-Message packages fix security vulnerabilities

LWP::UserAgent versions before 6.83 for Perl leak Authorization and Proxy-Authorization headers on cross-origin redirects...

LWP::UserAgent versions before 6.83 for Perl leak Authorization and Proxy-Authorization headers on cross-origin redirects

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SUSE CVE-2026-8368

LWP::UserAgent versions before 6.83 for Perl leak Authorization and Proxy-Authorization headers on cross-origin redirects. On a 3xx response, the redirect handler strips only Host and Cookie before issuing the follow-up request. Caller-supplied Authorization and Proxy-Authorization headers are se...

AZL-86669 CVE-2026-7168 affecting package curl for versions less than 8.11.1-7

Successfully using libcurl to do a transfer over a specific HTTP proxy proxyA with Digest authentication and then changing the proxy host to a second one proxyB for a second transfer, reusing the same handle, makes libcurl wrongly pass on the Proxy-Authorization: header field meant for proxyA, to...

Replay Attack

Overview Affected versions of this package are vulnerable to Replay Attack in the Proxy-Authorization: header handling process. An attacker can gain unauthorized access to resources or sensitive information by leveraging a scenario where authentication credentials intended for one proxy are...

CVE-2026-7168 cross-proxy Digest auth state leak

Successfully using libcurl to do a transfer over a specific HTTP proxy proxyA with Digest authentication and then changing the proxy host to a second one proxyB for a second transfer, reusing the same handle, makes libcurl wrongly pass on the Proxy-Authorization: header field meant for proxyA, to...

CVE-2026-7168

Successfully using libcurl to do a transfer over a specific HTTP proxy proxyA with Digest authentication and then changing the proxy host to a second one proxyB for a second transfer, reusing the same handle, makes libcurl wrongly pass on the Proxy-Authorization: header field meant for proxyA, to...

CVE-2026-8368: Insufficiently Protected Credentials

LWP::UserAgent versions before 6.83 for Perl leak Authorization and Proxy-Authorization headers on cross-origin redirects. On a 3xx response, the redirect handler strips only Host and Cookie before issuing the follow-up request. Caller-supplied Authorization and Proxy-Authorization headers are se...

GHSA-7J59-V9QR-6FQ9 Kiota abstractions RedirectHandler leaks Cookie/Proxy-Authorization headers on cross-host redirect

Summary 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. This vulnerability is present in the RedirectHandlers...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: python-pip (UTSA-2026-016506)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016506 advisory. Requests is a HTTP library. Since Requests 2.3.0, Requests has been leaking Proxy-Authorization headers to destination servers when redirected to an HTTPS endpoint...

PT-2026-35898

Name of the Vulnerable Software and Affected Versions curl affected versions not specified Description When using libcurl to perform a transfer over a specific HTTP proxy proxyA with Digest authentication and subsequently changing the proxy host to a second one proxyB while reusing the same handl...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: libsoup (UTSA-2026-014297)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-014297 advisory. A flaw was found in the libsoup HTTP library that can cause proxy authentication credentials to be sent to unintended destinations. When handling HTTP redirects,...

EUVD-2026-23638

The AsyncHttpClient AHC library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. When redirect following is enabled followRedirecttrue, versions of AsyncHttpClient prior to 3.0.9 and 2.14.5 forward Authorization and Proxy-Authorization headers...

PT-2026-33219

Name of the Vulnerable Software and Affected Versions AsyncHttpClient versions prior to 2.14.5 AsyncHttpClient versions prior to 3.0.9 Description When redirect following is enabled via followRedirecttrue, the library forwards Authorization and Proxy-Authorization headers and Realm credentials to...

AIOHTTP Leaks Cookie And Proxy-Authorization Headers On Cross-origin Redirect

Summary When following redirects to a different origin, aiohttp drops the Authorization header, but retains the Cookie and Proxy-Authorization headers. Impact The Cookie and Proxy-Authorizations headers could contain sensitive information which may be leaked to an unintended party after following...

SUSE CVE-2026-34518

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, when following redirects to a different origin, aiohttp drops the Authorization header, but retains the Cookie and Proxy-Authorization headers. This issue has been patched in version 3.13.4...

GHSA-966J-VMVW-G2G9 AIOHTTP leaks Cookie and Proxy-Authorization headers on cross-origin redirect

Summary When following redirects to a different origin, aiohttp drops the Authorization header, but retains the Cookie and Proxy-Authorization headers. Impact The Cookie and Proxy-Authorizations headers could contain sensitive information which may be leaked to an unintended party after following...

AIOHTTP leaks Cookie and Proxy-Authorization headers on cross-origin redirect

Summary When following redirects to a different origin, aiohttp drops the Authorization header, but retains the Cookie and Proxy-Authorization headers. Impact The Cookie and Proxy-Authorizations headers could contain sensitive information which may be leaked to an unintended party after following...

Information Exposure

Overview Affected versions of this package are vulnerable to Information Exposure in the handling of cross-origin redirects, where Cookie and Proxy-Authorization headers are not properly removed. An attacker can obtain sensitive information by causing a user to follow a redirect to a malicious...