CWE-296Base

Improper Following of a Certificate's Chain of Trust

Draft in the CWE catalog · 18 CVEs mapped

18
CVEs mapped
7.7
Median CVSS
What it is

The product does not follow, or incorrectly follows, the chain of trust for a certificate back to a trusted root certificate.

Recent examples
—none
CVE-2026-96770

CVE-2026-96770 - UNKNOWN Severity Vulnerability

All published s2s-proxy versions through 0.2.2 are affected. In versions 0.1.16 through 0.2.2, TLS server listeners use Go's RequireAnyClientCert mode when skipCAVerification is false. This mode checks that the client holds the certificate's private key but does not verify the certificate against the configured CA. An attacker can therefore use a self-signed certificate and key to establish a TLS and yamux connection, then invoke RPCs allowed by the proxy's configuration and Temporal credentials. No certificate or private key trusted by the deployment, and no Temporal credential, is required.

no explanation yet
0%
epss
3.7cvss
CVE-2026-73542

CVE-2026-73542 - LOW Severity Vulnerability

Multiple SEIKO EPSON printers and scanners contain revoked root certificates. A man-in-the-middle attack may allow an attacker to obtain communication data transmitted by the product. As for the details of the affected products and versions, refer to the vendor's information.

LOWno explanation yet
0%
epss
8.4cvss
CVE-2026-24066

Slate Digital Connect macOS XPC certificate validation privilege escalation

Slate Digital Connect 1.37.0 for macOS installs a privileged helper tool, com.slatedigital.connect.privileged.helper.tool, which exposes the XPC service com.slatedigital.connect.privileged.helper.tool2. The helper validates connecting XPC clients by checking only the subject.OU value of the client's signing certificate and does not verify that the certificate chains to a trusted code-signing authority. A local attacker can sign a malicious client with a self-signed certificate containing the expected organizational unit value and connect to the privileged XPC service. This allows unauthorized access to privileged helper functionality and may lead to local privilege escalation.

HIGHno explanation yet
0%
epss
The record
Technical detail
CWE ID
CWE-296
Abstraction
Base
Structure
Simple
Status
Draft
References (2)