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...

EulerOS Virtualization 2.12.0 : curl (EulerOS-SA-2026-2097)

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.libcur...

EulerOS Virtualization 2.12.1 : curl (EulerOS-SA-2026-2072)

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.libcur...

OESA-2026-2505 rsync security update

Rsync is an open source utility that provides fast incremental file transfer. It uses the "rsync algorithm" which provides a very fast method for bringing remote files into sync. It does this by sending just the differences in the files across the link, without requiring that both sets of files a...

OESA-2026-2502 rsync security update

Rsync is an open source utility that provides fast incremental file transfer. It uses the "rsync algorithm" which provides a very fast method for bringing remote files into sync. It does this by sending just the differences in the files across the link, without requiring that both sets of files a...

SUSE CVE-2026-45232

Rsync versions before 3.4.3 contain an off-by-one out-of-bounds stack write vulnerability in the establishproxyconnection function in socket.c that allows network attackers to corrupt stack memory by sending a malformed HTTP proxy response. Attackers can exploit this by positioning themselves...

Off-by-one Error

Overview Affected versions of this package are vulnerable to Off-by-one Error via the establishproxyconnection function. An attacker can corrupt stack memory by sending a specially crafted HTTP proxy response line of 1023 or more bytes without a newline terminator, potentially leading to...

CVE-2026-45232

Rsync versions before 3.4.3 contain an off-by-one out-of-bounds stack write vulnerability in the establishproxyconnection function in socket.c that allows network attackers to corrupt stack memory by sending a malformed HTTP proxy response. Attackers can exploit this by positioning themselves...

CVE-2026-45232

Rsync versions before 3.4.3 contain an off-by-one out-of-bounds stack write vulnerability in the establishproxyconnection function in socket.c that allows network attackers to corrupt stack memory by sending a malformed HTTP proxy response. Attackers can exploit this by positioning themselves...

netrc credential leak with reused proxy connection

...

CVE-2026-6429 netrc credential leak with reused proxy connection

When asked to both use a .netrc file for credentials and to follow HTTP redirects, libcurl could leak the password used for the first host to the followed-to host under certain circumstances...

CVE-2026-6429 netrc credential leak with reused proxy connection

When asked to both use a .netrc file for credentials and to follow HTTP redirects, libcurl could leak the password used for the first host to the followed-to host under certain circumstances...

JLSEC-2026-438 curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a server, even if the...

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: libcurl: Credential leak via reused proxy connection during HTTP redirects

A flaw was found in libcurl. When configured to use a .netrc file for credentials and follow HTTP redirects, libcurl can inadvertently send the password from the initial connection to the redirected host. This sensitive information disclosure occurs when both the original and redirect URLs use...