RHSA-2026:55439 Red Hat Security Advisory: curl security update

Bulletin has no description...

RHSA-2026:55432 Red Hat Security Advisory: curl security update

Bulletin has no description...

curl: curl: Information disclosure via OAuth2 bearer token leakage during HTTP(S) redirect

A flaw was found in curl. When an OAuth2 bearer token is used for an HTTPS transfer that redirects to a second URL, curl could unintentionally leak the token. This occurs if the second hostname has entries in the .netrc file, allowing the bearer token intended for the first host to be sent to the...

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: curl: Insecure connection establishment due to TLS configuration mismatch

A flaw was found in curl. When a new data transfer attempts to upgrade its connection using STARTTLS, it may incorrectly reuse an existing live connection. This reuse can occur even if the Transport Layer Security TLS configuration of the new transfer does not match the existing connection,...

curl: curl: Authentication bypass due to incorrect connection reuse with Negotiate authentication

A flaw was found in curl. When an application uses libcurl to make multiple Negotiate-authenticated HTTP or HTTPS requests to the same server with different credentials, libcurl may incorrectly reuse an existing connection. This logical error can cause a subsequent request to be sent using the...

curl: curl: Information disclosure via OAuth2 bearer token leakage during HTTP(S) redirect

A flaw was found in curl. When an OAuth2 bearer token is used for an HTTPS transfer that redirects to a second URL, curl could unintentionally leak the token. This occurs if the second hostname has entries in the .netrc file, allowing the bearer token intended for the first host to be sent to the...

curl: curl: Insecure connection establishment due to TLS configuration mismatch

A flaw was found in curl. When a new data transfer attempts to upgrade its connection using STARTTLS, it may incorrectly reuse an existing live connection. This reuse can occur even if the Transport Layer Security TLS configuration of the new transfer does not match the existing connection,...

curl: curl: Man-in-the-middle attack via SSH host key bypass

A flaw was found in curl. When a libcurl-based application uses SCP:// or SFTP:// for transfers and employs the CURLOPTSSHKEYFUNCTION callback, it may silently accept an untrusted server. This occurs if the server's host key type differs from the one stored in the knownhosts file. The callback...

curl: curl: SSH host verification bypass when using schemeless URLs with SFTP/SCP

A flaw was found in curl. When a user invokes curl with a schemeless URL and specifies SFTP SSH File Transfer Protocol or SCP Secure Copy Protocol as the default protocol, the tool layer fails to initialize critical SSH security options. This bypasses host verification, allowing curl to connect t...

curl: curl: Authentication bypass due to incorrect connection reuse with Negotiate authentication

A flaw was found in curl. When an application uses libcurl to make multiple Negotiate-authenticated HTTP or HTTPS requests to the same server with different credentials, libcurl may incorrectly reuse an existing connection. This logical error can cause a subsequent request to be sent using the...

curl: curl: Unauthorized access due to improper HTTP proxy connection reuse

A flaw was found in curl. This vulnerability allows curl to wrongly reuse an existing HTTP proxy connection when performing a CONNECT request to a server, even if the new request uses different authentication credentials for the HTTP proxy. This improper connection reuse could lead to an attacker...

Important: Red Hat Security Advisory: curl security update

An update for curl is now available for Red Hat Enterprise Linux 10. 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...

Important: Red Hat Security Advisory: curl security update

An update for curl is now available for Red Hat Enterprise Linux 10. 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...

RHEL 9 : curl (RHSA-2026:55439)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:55439 advisory. The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including...

Oracle Linux 10 : curl (ELSA-2026-55432)

The remote Oracle Linux 10 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-55432 advisory. - fix proxy environment variable change detection CVE-2026-8927 - fix HTTP Negotiate connection reuse auth bypass CVE-2026-1965 - fix OAuth2 bearer token leak...

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: curl: Authentication bypass due to incorrect connection reuse with Negotiate authentication CVE-2026-1965 curl: curl:...

ALSA-2026:55432 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: Information disclosure due to uncleared proxy authentication state CVE-2026-8927 For more details about the security...

RockyLinux 9 : curl (RLSA-2026:55439)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:55439 advisory. curl: curl: Authentication bypass due to incorrect connection reuse with Negotiate authentication CVE-2026-1965 curl: curl: Information disclosure via...

curl security update

8.12.1-4.4 - fix proxy environment variable change detection CVE-2026-8927 8.12.1-4.el102.3 - fix HTTP Negotiate connection reuse auth bypass CVE-2026-1965 - fix OAuth2 bearer token leak via redirect and netrc CVE-2026-3783 - fix proxy connection reuse with wrong credentials CVE-2026-3784...