UBUNTU-CVE-2026-35388

OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions...

CVE-2026-35388

OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions...

CVE-2026-35388

OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions...

CVE-2026-35388

OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions...

CVE-2026-35388

OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions...

Unprotected Alternate Channel

Overview Affected versions of this package are vulnerable to Unprotected Alternate Channel due to the omission of confirmation in proxy-mode multiplexing sessions. An attacker can cause unintended data handling by establishing a multiplexed session without explicit confirmation when specific and...

CVE-2026-35388

OpenSSH (before 10.3) is affected by a vulnerability in proxy-mode multiplexing where the system omits connection multiplexing confirmation for multiplexing sessions. The issue is tied to OpenSSH’s proxy-mode multiplexing behavior and is described as a flaw in the handling of multiplexing confirm...

CVE-2026-35388

OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions...

CVE-2026-35388: Unprotected Alternate Channel

OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions...

PT-2026-29835

Name of the Vulnerable Software and Affected Versions OpenSSH versions prior to 10.3 Description OpenSSH versions before 10.3 do not confirm connection multiplexing in proxy-mode multiplexing sessions. Recommendations Update to version 10.3 or later...

OpenSSH 安全漏洞

OpenSSH OpenBSD Secure Shell is a set of open-source tools developed by OpenBSD in Canada, designed for secure access to remote computers. This tool is an open-source implementation of the SSH protocol, supporting encryption of all transmissions. It effectively prevents eavesdropping, connection...

Rails Active Storage Has A Possible DoS Vulnerability In Proxy Mode Via Multi-range Requests

Impact Active Storage's proxy controller does not limit the number of byte ranges in an HTTP Range header. A request with thousands of small ranges causes disproportionate CPU usage compared to a normal request for the same file, possibly resulting in a DoS vulnerability. Releases The fixed...

CVE-2026-33658

Ruby on Rails Active Storage is affected by a DoS vulnerability in the proxy mode where the HTTP Range header can include thousands of small ranges, causing disproportionate CPU usage. This impacts Rails applications using Active Storage prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1. A patch ha...

CVE-2026-33658 Rails Active Storage has a possible DoS vulnerability in proxy mode via multi-range requests

Active Storage allows users to attach cloud and local files in Rails applications. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 Active Storage's proxy controller does not limit the number of byte ranges in an HTTP Range header. A request with thousands of small ranges causes disproportionate C...

Protection Mechanism Failure

github.com/envoyproxy/envoy is vulnerable to Protection Mechanism Failure. The vulnerability is due to accepting and forwarding client data before a successful 2xx response in TCP proxy mode, which allows an attacker to cause desynchronization when upstream proxies reject the CONNECT request...

Rails Active Storage has a possible DoS vulnerability in proxy mode via multi-range requests

Impact Active Storage's proxy controller does not limit the number of byte ranges in an HTTP Range header. A request with thousands of small ranges causes disproportionate CPU usage compared to a normal request for the same file, possibly resulting in a DoS vulnerability. Releases The fixed...

GHSA-P9FM-F462-GGRG Rails Active Storage has a possible DoS vulnerability in proxy mode via multi-range requests

Impact Active Storage's proxy controller does not limit the number of byte ranges in an HTTP Range header. A request with thousands of small ranges causes disproportionate CPU usage compared to a normal request for the same file, possibly resulting in a DoS vulnerability. Releases The fixed...

Rails Active Storage has a possible DoS vulnerability in proxy mode via multi-range requests

Impact Active Storage’s proxy controller does not limit the number of byte ranges in an HTTP Range header. A request with thousands of small ranges causes disproportionate CPU usage compared to a normal request for the same file, possibly resulting in a DoS vulnerability...

Linux Distros Unpatched Vulnerability : CVE-2026-33174

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Active Storage allows users to attach cloud and local files in Rails applications. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, when serving files through...

CVE-2026-33174 Rails Active Storage has a possible DoS vulnerability when in proxy mode via Range requests

Active Storage allows users to attach cloud and local files in Rails applications. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, when serving files through Active Storage's proxy delivery mode, the proxy controller loads the entire requested byte range into memory before sending it. A request...