aiohttp: TLS Server Hostname Override Is Ignored When Reusing HTTPS Connections

Summary The serverhostname TLS SNI check can be bypassed when an existing connection is reused. Impact If an application makes multiple requests to the same domain, but with different per-request serverhostname parameters, then the later calls may succeed by reusing the existing connection when...

FreeBSD : h2o -- heap overrun parsing zero-length SNI (fba766f4-ccda-4e1b-8875-ab857c6a6532)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the fba766f4-ccda-4e1b-8875-ab857c6a6532 advisory. h2o project reports: When h2o receives a TLS or QUIC ClientHello containing a zero-length SNI extension...

EulerOS 2.0 SP13 : pyOpenSSL (EulerOS-SA-2026-2351)

According to the versions of the pyOpenSSL packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 0.14.0 and prior to version 26.0.0, if a user provided callback t...

CVE-2026-5503

In TLSXEchChangeSNI, the ctx-extensions branch set extensions unconditionally even when TLSXFind returned NULL. This caused TLSXUseSNI to attach the attacker-controlled publicName to the shared WOLFSSLCTX when no inner SNI was configured. TLSXEchRestoreSNI then failed to clean it up because its...

CVE-2026-10158

A security flaw has been discovered in TRENDnet TEW-432BRP 3.10B20. Affected is the function formPortFw of the file /goform/formPortFw. The manipulation of the argument servername results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been released t...

CVE-2026-10158

A security flaw has been discovered in TRENDnet TEW-432BRP 3.10B20. Affected is the function formPortFw of the file /goform/formPortFw. The manipulation of the argument servername results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been released t...

TRENDnet TEW-432BRP 安全漏洞

TRENDnet TEW-432BRP is a dual-band wireless router produced by the TRENDnet company. Version 3.10B20 of TRENDnet TEW-432BRP contains a security vulnerability. This vulnerability arises from the operation of the formPortFw function in the file/goform/formPortFw, where the parameter servername caus...

Security Bulletin: There is a vulnerability in vertx-core-4.5.24.jar used by IBM Maximo Manage application in IBM Maximo Application Suite (CVE-2026-6860)

Summary There is a vulnerability in vertx-core-4.5.24.jar used by IBM Maximo Manage application in IBM Maximo Application Suite. Vulnerability Details CVEID:CVE-2026-6860 DESCRIPTION: A TCP client can perform a TLS handshake and present the server name extension with a server name that is accepte...

h2o -- heap overrun parsing zero-length SNI

h2o project reports: When h2o receives a TLS or QUIC ClientHello containing a zero-length SNI extension, it can overrun the zero-length hostname while copying it. This can trigger a segmentation fault and cause a denial of service...

EUVD-2026-31670

A flaw has been found in Totolink A8000RU 7.1cu.643b20200521. This vulnerability affects the function setOpenVpnCertGenerationCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Executing a manipulation of the argument servername can lead to os command injection. The...

Unity Linux 20.1060e / 20.1070e Security Update: lynx (UTSA-2026-016667)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016667 advisory. Lynx through 2.8.9 mishandles the userinfo subcomponent of a URI, which allows remote attackers to discover cleartext credentials because they may appear in SNI data...

Astra Linux – Vulnerability in Tomcat9

Improper input validation vulnerability. This issue affects Apache Tomcat: versions 11.0.0-M1 through 11.0.14, 10.1.0-M1 through 10.1.49, and 9.0.0-M1 through 9.0.112. The following versions were at the end of their support lifecycles at the time the CVE was created, but are known to be affected:...

Security Bulletin: Multiple Vulnerabilities in pyOpenSSL bundled with IBM Fusion, IBM Fusion HCI, and IBM Fusion Data Cataloging

Summary IBM Fusion, IBM Fusion HCI, and IBM Fusion Data Cataloging include the pyOpenSSL library, which is susceptible to a critical buffer overflow and a "fail-open" security bypass. A classic buffer overflow vulnerability exists when a user-provided cookie generation callback returns a value...

CVE-2026-5773 wrong reuse of SMB connection

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-2026-6860

A TCP client can perform a TLS handshake and present the server name extension with a server name that is accepted by a server wildcard name, e.g. if the server is configured with a certificate accepting .example.com, any XYZ.example.com where xyz is a valid name can be used...

Vert.x has a DoS via unbounded server-side SNI SslContext cache growth

Potential unbounded server-side SNI SslContext cache growth in Vert.x TLS handling, with = resource-exhaustion / DoS impact. On affected versions, matching server-side SNI names are cached via computeIfAbsentserverName, ... in a serverName-keyed SslContext cache. The implementation differs slight...

CVE-2024-30167

/cgi-bin/time.cgi in Atlona AT-OME-MS42 Matrix Switcher 1.1.2 allow remote authenticated users to execute arbitrary commands as root via a POST request that carries a serverName parameter...

CVE-2026-6860

A TCP client can perform a TLS handshake and present the server name extension with a server name that is accepted by a server wildcard name, e.g. if the server is configured with a certificate accepting .example.com, any XYZ.example.com where xyz is a valid name can be used...

CVE-2026-6860

A TCP client can perform a TLS handshake and present the server name extension with a server name that is accepted by a server wildcard name, e.g. if the server is configured with a certificate accepting .example.com, any XYZ.example.com where xyz is a valid name can be used...

CVE-2026-6860

CVE-2026-6860 describes a TLS SNI handling weakness where a TCP client can present an SNI that matches a server wildcard certificate (e.g., *.example.com) and be accepted by the server, allowing any XYZ.example.com under the wildcard to be used. The CVSS 4.0 vector yields a NETWORK, LOW complexit...