CVE-2026-6276

Using libcurl, when a custom Host: header is first set for an HTTP request and a second request is subsequently done using the same easy handle but without the custom Host: header set, the second request would use stale information and pass on cookies meant for the first host in the second reques...

ALPINE-CVE-2026-6276

Using libcurl, when a custom Host: header is first set for an HTTP request and a second request is subsequently done using the same easy handle but without the custom Host: header set, the second request would use stale information and pass on cookies meant for the first host in the second reques...

EUVD-2026-29928

Using libcurl, when a custom Host: header is first set for an HTTP request and a second request is subsequently done using the same easy handle but without the custom Host: header set, the second request would use stale information and pass on cookies meant for the first host in the second reques...

CVE-2026-6276

CVE-2026-6276 affects libcurl: if a custom Host header is initially set for an HTTP request and a subsequent request on the same easy handle is made without the Host header, the second request can reuse stale host information and leak cookies intended for the first host. The issue manifests as a ...

CVE-2026-6276

Using libcurl, when a custom Host: header is first set for an HTTP request and a second request is subsequently done using the same easy handle but without the custom Host: header set, the second request would use stale information and pass on cookies meant for the first host in the second reques...

CVE-2026-6276 stale custom cookie host causes cookie leak

Using libcurl, when a custom Host: header is first set for an HTTP request and a second request is subsequently done using the same easy handle but without the custom Host: header set, the second request would use stale information and pass on cookies meant for the first host in the second reques...

CVE-2026-6276 stale custom cookie host causes cookie leak

Using libcurl, when a custom Host: header is first set for an HTTP request and a second request is subsequently done using the same easy handle but without the custom Host: header set, the second request would use stale information and pass on cookies meant for the first host in the second reques...

CVE-2026-6276

Using libcurl, when a custom Host: header is first set for an HTTP request and a second request is subsequently done using the same easy handle but without the custom Host: header set, the second request would use stale information and pass on cookies meant for the first host in the second reques...

CVE-2026-6276

Using libcurl, when a custom Host: header is first set for an HTTP request and a second request is subsequently done using the same easy handle but without the custom Host: header set, the second request would use stale information and pass on cookies meant for the first host in the second reques...

CVE-2026-6253 proxy credentials leak over redirect-to proxy

curl might erroneously pass on credentials for a first proxy to a second proxy. This can happen when the following conditions are true: 1. curl is setup to use specific different proxies for different URL schemes 2. the first proxy needs credentials 3. the second proxy uses no credentials 4. whil...

CVE-2026-6253

curl might erroneously pass on credentials for a first proxy to a second proxy. This can happen when the following conditions are true: 1. curl is setup to use specific different proxies for different URL schemes 2. the first proxy needs credentials 3. the second proxy uses no credentials 4. whil...

CVE-2026-6253

The curl (and libcurl ) library is vulnerable to a credential leak where it might erroneously pass proxy credentials from a first proxy to a second proxy. This occurs when different proxies are configured for different URL schemes; if a request initiated via a credentialed first proxy is redirect...

CVE-2026-6253

curl might erroneously pass on credentials for a first proxy to a second proxy. This can happen when the following conditions are true: 1. curl is setup to use specific different proxies for different URL schemes 2. the first proxy needs credentials 3. the second proxy uses no credentials 4. whil...

curl 安全漏洞

curl is an open-source tool developed by cURL for transferring data from a server or to a server. Curl has a security vulnerability, which stems from an error in passing the proxy authentication header. This error may cause the Proxy-Authorization header from the first proxy to be incorrectly...

libcurl 安全漏洞

libcurl is a free and easy-to-use client URL transfer library for cURL, which is open-source. There is a security vulnerability in libcurl, caused by improper handling of custom Host headers. This vulnerability may lead to the incorrect transmission of cookies from the first request during the...

urllib3 安全漏洞

urllib3 is an open-source Python HTTP library developed by urllib3. This product features a thread-safe connection pool and support for file publishing. There were security vulnerabilities in the versions of urllib3 from 2.6.0 to 2.7.0. These vulnerabilities stemmed from the possibility of...

CVE-2026-44296

Deskflow is a keyboard and mouse sharing app. Prior to 1.26.0.167, a remote, unauthenticated denial of service DoS vulnerability affects Deskflow servers running with TLS enabled the default. When any TCP peer connects to the listening port and its first bytes do not parse as a valid TLS...

CVE-2026-43938 YAF.NET: Unauthenticated Stored Second-Order XSS in Admin Event Log via Reflected `User-Agent` Header

YetAnotherForum.NET YAF.NET is a C ASP.NET forum. Prior to 4.0.5 and 3.2.12, the application's database logger YAFNET.Core/Logger/DbLogger.cs captures the incoming request's User-Agent header into a JObject, serializes it with JsonConvert, and stores the result in the EventLog.Description column...

CVE-2026-43938

Summary (supported): CVE-2026-43938 affects YetAnotherForum.NET (YAF.NET) prior to 4.0.5 and 3.2.12. The database logger captures the request’s User-Agent into a JSON object and stores it in EventLog.Description. When an admin views the EventLog, the code deserializes that JSON and interpolates t...

CVE-2026-43938 YAF.NET: Unauthenticated Stored Second-Order XSS in Admin Event Log via Reflected `User-Agent` Header

YetAnotherForum.NET YAF.NET is a C ASP.NET forum. Prior to 4.0.5 and 3.2.12, the application's database logger YAFNET.Core/Logger/DbLogger.cs captures the incoming request's User-Agent header into a JObject, serializes it with JsonConvert, and stores the result in the EventLog.Description column...