CVE-2026-4370

Summary. CVE-2026-4370 affects Juju (variants: 3.2.0–3.6.19 and 4.0–4.0.4). The issue is in the internal Dqlite database cluster where TLS client/server authentication is not properly performed; the Juju controller’s database endpoint does not validate client certificates when a new node joins th...

CVE-2026-4370 Improper TLS Client/Server authentication and certificate verification on Database Cluster

A vulnerability was identified in Juju from version 3.2.0 until 3.6.19 and from version 4.0 until 4.0.4, where the internal Dqlite database cluster fails to perform proper TLS client and server authentication. Specifically, the Juju controller's database endpoint does not validate client...

[SECURITY] Fedora 43 Update: chunkah-0.3.2-1.fc43

chunkah is an OCI building tool that takes a flat rootfs and outputs a layered OCI image with content-based layers. It optimizes container image layer reuse by grouping files based on their content e.g., by RPM package rather than by Dockerfile instruction order. It is a generalized successor to...

Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')

Overview Affected versions of this package are vulnerable to Selection of Less-Secure Algorithm During Negotiation 'Algorithm Downgrade' in the TLS 1.3 session resumption logic if the subsequent ClientHello negotiates TLS 1.2 back. An attacker can gain unauthorized access by impersonating a...

CVE-2026-34873

An issue exists in Mbed TLS versions 3.5.0 through 4.0.0 where client impersonation can occur during the resumption of a TLS 1.3 session . This vulnerability affects various Linux distributions and embedded systems using the library. For instance, Fedora 42, 43, and 44 have addressed related issu...

LightGuard: Transparent WiFi Security Via Physical-Layer LiFi Key Bootstrapping

WiFi is inherently vulnerable to eavesdropping because RF signals may penetrate many physical boundaries, such as walls and floors. LiFi, by contrast, is an optical method confined to line-of-sight and blocked by opaque surfaces. We present LightGuard, a dual-link architecture built on this...

PT-2026-29578

Name of the Vulnerable Software and Affected Versions Mbed TLS versions 3.3.0 through 3.6.5 and version 4.0.0 Description The Mbed TLS software contains a flaw related to Algorithm Downgrade. Recommendations Update to a version later than 3.6.5. Update to a version later than 4.0.0...

CVE-2026-34873

An issue was discovered in Mbed TLS 3.5.0 through 4.0.0. Client impersonation can occur while resuming a TLS 1.3 session...

Mbed TLS 安全漏洞

Mbed TLS is an open-source, portable, easy-to-use, readable, and flexible SSL library developed by Mbed. Versions of Mbed TLS from 3.5.0 to 4.0.0 contain security vulnerabilities, which stem from the potential for client impersonation when restoring TLS 1.3 sessions...

CVE-2026-34873

An issue was discovered in Mbed TLS 3.5.0 through 4.0.0. Client impersonation can occur while resuming a TLS 1.3 session...

TencentOS Server 3: osbuild-composer (TSSA-2026:0204)

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0204 advisory. Package updates are available for TencentOS Server 3 that fix the following vulnerabilities...

MGASA-2026-0074 Updated python-openssl packages fix security vulnerabilities

pyOpenSSL allows TLS connection bypass via unhandled callback exception in settlsextservernamecallback. CVE-2026-27448 pyOpenSSL DTLS cookie callback buffer overflow. CVE-2026-27459...

nginx: NGINX: Data injection via man-in-the-middle attack on TLS proxied connections

A flaw was found in NGINX. When NGINX is configured to proxy to upstream Transport Layer Security TLS servers, An attacker with a man-in-the-middle MITM position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data into the response...

K000160551: OpenSSL vulnerability CVE-2025-66199

Security Advisory Description Issue summary: A TLS 1.3 connection using certificate compression can be forced to allocate a large buffer before decompression without checking against the configured certificate size limit. Impact summary: An attacker can cause per-connection memory allocations of ...

Moderate: Red Hat Security Advisory: nginx security update

An update for nginx is now available for Red Hat Enterprise Linux 9.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for ea...

nginx: NGINX: Data injection via man-in-the-middle attack on TLS proxied connections

A flaw was found in NGINX. When NGINX is configured to proxy to upstream Transport Layer Security TLS servers, An attacker with a man-in-the-middle MITM position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data into the response...

nginx: NGINX: Data injection via man-in-the-middle attack on TLS proxied connections

A flaw was found in NGINX. When NGINX is configured to proxy to upstream Transport Layer Security TLS servers, An attacker with a man-in-the-middle MITM position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data into the response...

[SECURITY] Fedora 42 Update: nss-3.121.0-1.fc42

Network Security Services NSS is a set of libraries designed to support cross-platform development of security-enabled client and server applications. Applications built with NSS can support SSL v2 and v3, TLS, PKCS 5, PKCS 7, PKCS 11, PKCS 12, S/MIME, X.509 v3 certificates, and other security...

[SECURITY] Fedora 44 Update: nss-3.121.0-1.fc44

Network Security Services NSS is a set of libraries designed to support cross-platform development of security-enabled client and server applications. Applications built with NSS can support SSL v2 and v3, TLS, PKCS 5, PKCS 7, PKCS 11, PKCS 12, S/MIME, X.509 v3 certificates, and other security...

UBUNTU-CVE-2026-33995

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, a double-free vulnerability in kerberosAcceptSecurityContext and kerberosInitializeSecurityContextA WinPR, winpr/libwinpr/sspi/Kerberos/kerberos.c can cause a crash in any FreeRDP clients on systems where...