SUSE CVE-2026-9545

In this scenario, libcurl first uses a proper HTTP/3 server for the initial transfers, and when it makes a second transfer to the same site it has been replaced by the attacker's impostor machine - without a valid certificate. When libcurl returns to the hostname the second time with a cached SSL...

libcurl 7.46.0 < 8.21.0 Super Cookie PSL Bypass (CVE-2026-8924)

The version of libcurl installed on the remote host is 7.46.0 prior to 8.21.0. It is, therefore, affected by a cookie injection vulnerability: - A flaw in curl's cookie parsing logic allows a malicious HTTP server to set 'super cookies' that bypass the Public Suffix List check. This enables an...

CVE-2026-10536

A flaw was found in libcurl. This use-after-free vulnerability occurs when an application configures an HTTP/2 stream-dependency tree and then performs a sequence of operations involving curleasyreset and curleasycleanup. During the final cleanup, libcurl attempts to access memory that has alread...

CVE-2026-9545

A flaw was found in libcurl. An attacker can exploit this by replacing a legitimate HTTP/3 server with an impostor machine. When libcurl attempts a second transfer to the same site with a cached SSL session and early data enabled, it may send sensitive request data before verifying the server's...

Insufficiently Protected Credentials

Overview Affected versions of this package are vulnerable to Insufficiently Protected Credentials in the process that handles .netrc credential retrieval when a URL is specified with a username but without a password. An attacker can gain unauthorized access to sensitive information by exploiting...

Double Free

Overview Affected versions of this package are vulnerable to Double Free in the GSASL context cleanup process. An attacker can cause arbitrary code execution or a denial of service by triggering the double-free condition. Remediation Upgrade libcurl to version 8.21.0 or higher. References - Curl...

CVE-2026-9547

When a libcurl-based application performs transfers via SCP:// or SFTP:// and utilizes the CURLOPTSSHKEYFUNCTION callback, it may silently accept an untrusted server. This vulnerability occurs when a server presents a host key type that does not match the specific key type already recorded for th...

CVE-2026-9546 sending old referer

A vulnerability in libcurl caused the HTTP Referer: header to persist even when explicitly cleared. While the documentation states that passing NULL to CURLOPTREFERER suppresses the header, the option failed to clear the internal state. As a result the previous referrer string was erroneously...

CVE-2026-9546 sending old referer

A vulnerability in libcurl caused the HTTP Referer: header to persist even when explicitly cleared. While the documentation states that passing NULL to CURLOPTREFERER suppresses the header, the option failed to clear the internal state. As a result the previous referrer string was erroneously...

CVE-2026-8458

libcurl might in some circumstances reuse the wrong connection when asked to do Negotiate-authenticated ones, even when they are set to use different 'services'. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When...

curl: libcurl: curl/libcurl: Remote denial of service via QUIC UDP receive function vulnerability

A flaw was found in curl and libcurl. A malicious HTTP/3 server can exploit an issue in the QUIC UDP receive function by continuously streaming empty UDP datagrams. This can lead to a remote denial of service DoS against a curl or libcurl client, as the helper function discards zero-length UDP...

libcurl 8.13.0 < 8.21.0 Use-After-Free in Socket Callback

The version of libcurl installed on the remote host is 8.13.0 prior to 8.21.0. It is, therefore, affected by a use-after-free vulnerability: - Calling curleasypause within the event-based CURLMOPTSOCKETFUNCTION callback triggers a use-after-free vulnerability. CVE-2026-9080 Note that Nessus has n...

libcurl 7.12.0 < 8.21.0 Cross-Proxy Digest Auth State Leak

The version of libcurl installed on the remote host is 7.12.0 prior to 8.21.0. It is, therefore, affected by a proxy credential disclosure vulnerability: - When reusing a libcurl handle for sequential transfers driven by environment-variable proxy configuration, libcurl fails to clear the proxy...

Astra Linux – Vulnerability in curl

When performing SSH-based transfers using either SCP or SFTP, and setting the knownhosts file, libcurl may still mistakenly accept connections to hosts that are not present in the specified file, if those hosts are added as recognized in the libssh global knownhosts file...

CVE-2026-8927

When reusing a libcurl handle for sequential transfers driven by environment-variable proxy configuration, libcurl fails to clear the proxy authentication state between requests. Specifically, if the initial transfer authenticates against proxyA using Digest auth, a subsequent transfer routed...

sending old referer

A vulnerability in libcurl caused the HTTP Referer: header to persist even when explicitly cleared. While the documentation states that passing NULL to CURLOPTREFERER suppresses the header, the option failed to clear the internal state. As a result, the previous referrer string was erroneously...

CURL-CVE-2026-9080 UAF after pause in socket callback

Calling curleasypause within the event-based CURLMOPTSOCKETFUNCTION callback triggers a use-after-free vulnerability, where libcurl attempts to store a flag using a dangling struct pointer immediately after that pointer's memory has been freed...

Security Bulletin: IBM Watson Speech Services Cartridge is vulnerable to multiple Operator package issues

Summary IBM Watson Speech Services Cartridge is vulnerable to multiple Operator package issues. We have performed updates to the Operators used by our Speech Services. The following vulnerabilities have been addressed in this update. Please read the details for remediation below. Vulnerability...

Astra Linux – Vulnerability in curl

There is an authentication bypass vulnerability in libcurl version 8.0.0, particularly in the FTP connection reuse feature. This vulnerability can cause incorrect credentials to be used during subsequent transfers. Previously created connections are retained in a connection pool for reuse if they...

Astra Linux – Vulnerability in curl

A authentication bypass vulnerability exists in libcurl prior to v8.0.0. It reuses an previously established SSH connection, even though one SSH option has been modified, which should prevent such reuse. libcurl maintains a pool of previously used connections and can reuse them for subsequent...