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...

EulerOS 2.0 SP15 : curl (EulerOS-SA-2026-2879)

According to the versions of the curl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A vulnerability, which was classified as problematic, has been found in cURL up to 8.19.0 Network Utility Software. Affected by this issue is some...

EulerOS Virtualization 2.10.1 : curl (EulerOS-SA-2026-2816)

According to the versions of the curl packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : libcurl might in some circumstances reuse the wrong connection for SMBS transfers.libcurl features a pool of recent connections so th...

EulerOS Virtualization 2.10.0 : curl (EulerOS-SA-2026-2847)

According to the versions of the curl packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : libcurl might in some circumstances reuse the wrong connection for SMBS transfers.libcurl features a pool of recent connections so th...

EulerOS 2.0 SP10 : curl (EulerOS-SA-2026-2644)

According to the versions of the curl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : libcurl might in some circumstances reuse the wrong connection for SMBS transfers. libcurl features a pool of recent connections so that subsequent...

EulerOS Virtualization 2.13.1 : curl (EulerOS-SA-2026-2368)

According to the versions of the curl packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : libcurl can in some circumstances reuse the wrong connection when asked to do an Negotiate-authenticated HTTP or HTTPS request. libcu...

CLSA-2026-1774366368 curl: Fix of 3 CVEs

CVE-2026-1965: fix incorrect connection reuse; prevent reuse of Negotiate- authenticated connections with different credentials and require authentication identity match - CVE-2026-3784: fix wrong proxy connection reuse with different credentials; check proxy user/password in proxyinfomatches to...

Security update for curl

This update for curl fixes the following issues: CVE-2026-1965: bad reuse of HTTP Negotiate connection bsc1259362. CVE-2026-3783: token leak with redirect and netrc bsc1259363. CVE-2026-3784: wrong proxy connection reuse with credentials bsc1259364. Patch Instructions: To install this SUSE update...

wrong proxy connection reuse with credentials

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UBUNTU-CVE-2026-3784

curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a server, even if the new request uses different credentials for the HTTP proxy. The proper behavior is to create or use a separate connection...

SUSE CVE-2026-3784

curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a server, even if the new request uses different credentials for the HTTP proxy. The proper behavior is to create or use a separate connection...

CVE-2026-3784

curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a server, even if the new request uses different credentials for the HTTP proxy. The proper behavior is to create or use a separate connection...

CVE-2026-3784

curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a server, even if the new request uses different credentials for the HTTP proxy. The proper behavior is to create or use a separate connection...

CVE-2026-3784

CVE-2026-3784 affects curl where an HTTP proxy connection reused during a CONNECT request with different proxy credentials. This is the underlying issue described in the initial CVE entry: a separate connection should be used when credentials differ. Connected feeds indicate a patch is available ...

CVE-2026-3784 wrong proxy connection reuse with credentials

curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a server, even if the new request uses different credentials for the HTTP proxy. The proper behavior is to create or use a separate connection...

CURL-CVE-2026-3784 wrong proxy connection reuse with credentials

curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a server, even if the new request uses different credentials for the HTTP proxy. The proper behavior is to create or use a separate connection...

wrong proxy connection reuse with credentials

curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a server, even if the new request uses different credentials for the HTTP proxy. The proper behavior is to create or use a separate connection...

nodejs: HTTP request smuggling using malformed Transfer-Encoding header

A flaw was found in the Node.js code where a specially crafted HTTPs request sent to a Node.js server failed to properly process the HTTPs headers, resulting in a request smuggling attack. An attacker can use this flaw to alter a request sent as an authenticated user if the Node.js server is...