CVE-2026-7666

An issue was discovered in Django 6.0 before 6.0.6 and 5.2 before 5.2.15. django.core.mail.backends.smtp.EmailBackend in Django fails to prevent reuse of a partially-initialized connection after a failed STARTTLS handshake when failsilently=True, which allows on-path network attackers to read ema...

OESA-2026-2477 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 vulnerability exists where a connection requiring TLS incorrectly reuses an existing unencrypted connection from the same connection pool. If...

CLSA-2026-1779358660 curl: Fix of 2 CVEs

CVE-2026-5773: wrong reuse of SMB connection; disable connection reuse for SMBS so a subsequent transfer cannot wrongfully reuse a pooled connection to a different share - CVE-2026-6276: clear stale custom-Host cookiehost between requests on the same easy handle cookie leak across origins...

CLSA-2026-1779358008 Fix CVE(s): CVE-2026-5773

SECURITY UPDATE: libcurl may reuse the wrong connection for SMBS transfers, leading to access of an unintended SMB share with the same credentials. - debian/patches/CVE-2026-5773.patch: disable connection reuse for SMBS in lib/url.c by returning early from ConnectionExists when the requested...

CLSA-2026-1779357606 curl: Fix of CVE-2026-5773

CVE-2026-5773: disable connection reuse for SMBS to prevent libcurl from reusing a connection to the same server for a different SMB share...

CLSA-2026-1779357393 curl: Fix of CVE-2026-5773

CVE-2026-5773: disable connection reuse for SMBS to prevent libcurl from reusing a connection to the same server for a different SMB share...

CLSA-2026-1779357116 curl: Fix of CVE-2026-5773

CVE-2026-5773: disable connection reuse for SMBS to prevent libcurl from reusing a connection to the same server for a different SMB share...

CLSA-2026-1779098432 Fix CVE(s): CVE-2026-5773

SECURITY UPDATE: wrong SMB connection reused due to missing share comparison - debian/patches/CVE-2026-5773.patch: disable connection reuse for SMBS by replacing connkeep with connclose in smbconnect lib/smb.c - CVE-2026-5773...

SUSE-SU-2026:1940-1 Security update for curl

This update for curl fixes the following issues: Security issues fixed: - CVE-2026-4873: connection reuse ignores TLS requirement bsc1262631. - CVE-2026-5545: wrong reuse of HTTP Negotiate connection bsc1262632. - CVE-2026-6253: proxy credentials leak over redirect-to proxy bsc1262635. -...

curl: Connection reuse ignores haproxyprotocol and HAPROXY_CLIENT_IP settings, allowing PROXY context to persist across transfers

Summary: libcurl's connection pool match logic does not include the CURLOPTHAPROXYPROTOCOL setting or the CURLOPTHAPROXYCLIENTIP value in its connection match key. Two transfers issued through the same Curleasy or via a shared connection cache CURLLOCKDATACONNECT therefore share one TCP connectio...

wrong reuse of HTTP Negotiate connection

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connection reuse ignores TLS requirement

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curl: CVE-2026-8932: incomplete mTLS config matching in conn reuse

Hi all, This report and my multiple subsequent ones may come as a surprise, as I was assured that curl now had zero vulnerabilities in it. Nonetheless, I think the CVE-2022-27782 fix "TLS and SSH connection too eager reuse", commit f18af4f874 2022-05-09, "tls: check more TLS details for connectio...

EUVD-2026-29923

libcurl might in some circumstances reuse the wrong connection when asked to do an authenticated HTTPS request after a Negotiate-authenticated one, when both use the same host. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid...

EUVD-2026-29924

libcurl might in some circumstances reuse the wrong connection for SMBS transfers. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When reusing a connection a range of criteria must be met. Due to a logical error in the...

CVE-2026-5773

libcurl might in some circumstances reuse the wrong connection for SMBS transfers. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When reusing a connection a range of criteria must be met. Due to a logical error in the...

ALPINE-CVE-2026-5545

libcurl might in some circumstances reuse the wrong connection when asked to do an authenticated HTTPS request after a Negotiate-authenticated one, when both use the same host. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid...

AZL-86664 CVE-2026-5545 affecting package curl for versions less than 8.11.1-9

libcurl might in some circumstances reuse the wrong connection when asked to do an authenticated HTTPS request after a Negotiate-authenticated one, when both use the same host. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid...

AZL-86928 CVE-2026-5545 affecting package cmake for versions less than 3.30.3-14

libcurl might in some circumstances reuse the wrong connection when asked to do an authenticated HTTPS request after a Negotiate-authenticated one, when both use the same host. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid...

CVE-2026-5545

libcurl might in some circumstances reuse the wrong connection when asked to do an authenticated HTTPS request after a Negotiate-authenticated one, when both use the same host. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid...