OESA-2026-2988 curl security update

cURL is a computer software project providing a library libcurl and command-line tool curl for transferring data using various protocols. Security Fixes: A use-after-free vulnerability exists in libcurl when an application configures an HTTP/2 stream-dependency tree via CURLOPTSTREAMDEPENDS or...

CVE-2026-58065 Apache Airflow Git provider: Git provider hook defaults to StrictHostKeyChecking=no, disabling SSH host-key verification

The Apache Airflow Git provider runs its git-over-SSH operations with StrictHostKeyChecking=no by default, disabling SSH host-key verification. An attacker who can intercept the network path between an Airflow worker and the Git server can impersonate the server man-in-the-middle, capturing the S...

USN-8525-1: curl vulnerabilities

Harry Sintonen discovered that curl incorrectly handled credentials when following HTTP redirects in conjunction with .netrc files. An attacker could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 18.04 LTS...

USN-8525-1 curl vulnerabilities

Harry Sintonen discovered that curl incorrectly handled credentials when following HTTP redirects in conjunction with .netrc files. An attacker could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 18.04 LTS...

CVE-2026-12064

When a user invokes curl using a schemeless URL combined with --proto-default sftp or scp, a disconnect occurs between the tool layer and libcurl. The tool layer incorrectly infers the URL scheme, which erroneously bypasses the initialization of critical SSH security options like...

CVE-2026-12064

When a user invokes curl using a schemeless URL combined with --proto-default sftp or scp, a disconnect occurs between the tool layer and libcurl. The tool layer incorrectly infers the URL scheme, which erroneously bypasses the initialization of critical SSH security options like...

CVE-2026-12064

CVE-2026-12064 describes an issue in curl where using a schemeless URL with --proto-default for SFTP/SCP causes the tool layer to skip SSH security configuration (notably CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256 and CURLOPT_SSH_KNOWNHOSTS ). The libcurl runtime honors the default protocol and proceeds ...

CVE-2026-12064 proto-default skips SSH verification

When a user invokes curl using a schemeless URL combined with --proto-default sftp or scp, a disconnect occurs between the tool layer and libcurl. The tool layer incorrectly infers the URL scheme, which erroneously bypasses the initialization of critical SSH security options like...

curl: CVE-2026-12064: proto-default skips SSH verification

Summary When a user invokes curl with a schemeless URL and --proto-default sftp or scp, the tool layer guesses the URL is HTTP and skips setting SSH security options CURLOPTSSHHOSTPUBLICKEYSHA256, CURLOPTSSHKNOWNHOSTS. However libcurl's runtime correctly applies --proto-default and connects via...

Medium: curl

Issue Overview: curl's code for managing SSH connections when SFTP was done using the wolfSSH powered backend was flawed and missed host verification mechanisms. This prevents curl from detecting MITM attackers and more. CVE-2025-10966 broken TLS options for threaded LDAPS NOTE:...

Huawei EulerOS: Security Advisory for curl (EulerOS-SA-2026-1207)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Medium: curl

Issue Overview: When asked to both use a .netrc file for credentials and to follow HTTP redirects, curl could leak the password used for the first host to the followed-to host under certain circumstances. This flaw only manifests itself if the netrc file has an entry that matches the redirect...