CVE-2026-91766

When the http:// stream wrapper follows a redirect it forwards the user-supplied Authorization, Cookie and Proxy-Authorization headers unchanged, even when the redirect target is a different host, a different port, or a downgrade from HTTPS to HTTP. A server that can steer a redirect therefore...

CVE-2026-91766

When the http:// stream wrapper follows a redirect it forwards the user-supplied Authorization, Cookie and Proxy-Authorization headers unchanged, even when the redirect target is a different host, a different port, or a downgrade from HTTPS to HTTP. A server that can steer a redirect therefore...

CVE-2026-91766

The PHP language contains a vulnerability in the http:// stream wrapper where it forwards user-supplied Authorization , Cookie , and Proxy-Authorization headers unchanged when following a redirect. This occurs even if the target is a different host, port, or involves a downgrade from HTTPS to HTT...

thetick

The Tick A simple embedded Linux backdoor. The Tick Compiling Installing Usage Media Compiling The Tick depends only on libcurl, so make sure you have the corresponding development package. For example on Debian based distributions you would do the following: sudo apt-get install libcurl-dev Once...

CVE-2026-33752

CVE-2026-33752 CVE-2026-33752 SSRF basado en redirecciones que permite el acceso a la red interna en curlcffi Resumen curlcffi no restringe las solicitudes a rangos de IP internos y sigue las redirecciones automáticamente mediante la librería subyacente libcurl. Debido a esto, una URL controlada...

CVE-2026-22019-libcurl-HTTP-2-CONNECT-Tunnel-Mixup

CVE-2026-22019 – libcurl HTTP/2 CONNECT: mezcla de túneles Código del programa simulación en C // curlhttp2tunnelmixup.c - Simulated libcurl handling CONNECT over HTTP/2 include void handlehttp2streamint streamid // Vulnerability: after CONNECT, the proxy mixes streams with the tunneled data if...

curl security update

An update is available for curl. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The curl packages provide the libcurl library and the curl utility for downloadi...

RLSA-2026:69126 Important: curl security update

The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP. Security Fixes: curl: libcurl: Unauthorized connection reuse due to a logical error CVE-2026-8458 curl: Information disclosure due to...

CVE-2026-82208

A flaw was found in libcurl when using the wolfSSL backend. When CA Certificate Authority caching is enabled and a CURLOPTSSLCTXFUNCTION callback is used to replace the trust store, libcurl can silently reinstall the cached store. This can lead to a scenario where a certificate that should be...

AlmaLinux 10 : curl (ALSA-2026:69125)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:69125 advisory. libcurl: libcurl: Security feature bypass due to improper mTLS connection reuse CVE-2026-8932 curl: curl: Information disclosure via incorrect .netrc...

AlmaLinux 9 : curl (ALSA-2026:69126)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:69126 advisory. curl: libcurl: Unauthorized connection reuse due to a logical error CVE-2026-8458 curl: Information disclosure due to uncleared proxy authentication stat...

RockyLinux 9 : curl (RLSA-2026:69126)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:69126 advisory. curl: libcurl: Unauthorized connection reuse due to a logical error CVE-2026-8458 curl: Information disclosure due to uncleared proxy authentication sta...

RockyLinux 10 : curl (RLSA-2026:69125)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:69125 advisory. libcurl: libcurl: Security feature bypass due to improper mTLS connection reuse CVE-2026-8932 curl: curl: Information disclosure via incorrect .netrc...

CVE-2026-80231

A flaw was found in libcurl. This vulnerability allows libcurl to incorrectly reuse an existing HTTPS connection for a given hostname, even when a different Native CA Store setting CURLSSLOPTNATIVECA is specified for the new connection. This could potentially lead to a client trusting a malicious...

Important: Red Hat Security Advisory: curl security update

An update for curl is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

curl: libcurl: Unauthorized connection reuse due to a logical error

A flaw was found in libcurl. A logical error in the connection pooling mechanism may cause libcurl to reuse an authenticated connection for an unintended service. This could allow an application to wrongfully reuse an existing connection to the same server that was authenticated for a different...

curl: Information disclosure due to uncleared proxy authentication state

A flaw was found in libcurl. When reusing a libcurl handle for sequential transfers with environment-variable proxy configuration, the library does not properly clear the proxy authentication state. This oversight can lead to the unintended disclosure of Proxy-Authorization headers to an incorrec...

CVE-2026-80230

A flaw was found in libcurl, a client-side URL transfer library. When public key pinning is configured, but standard peer verification is explicitly disabled, libcurl incorrectly allows connections to proceed without enforcing the public key pinning. This bypass enables unauthenticated connection...

CVE-2026-13608

A flaw was found in libcurl's SASL Simple Authentication and Security Layer negotiation for LDAP Lightweight Directory Access Protocol authentication when using the OpenLDAP backend. An incomplete handshake sequence can be misinterpreted as a successful cryptographic verification. A remote...

curl: curl: Information disclosure via incorrect Digest authentication header reuse

A flaw was found in curl. When libcurl performs a transfer to an HTTP origin using Digest authentication and then reuses the same connection handle for a subsequent transfer to a different origin, it may incorrectly send the authentication header intended for the first origin to the second. This...