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CWE-295

1,689 CVEs • Abstraction: Base

Improper Certificate Validation

The product does not validate, or incorrectly validates, a certificate.

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CVEs (1,689)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Sigstore
1Cosign
Jun 17, 2026
Feb 19, 2026
N/A· v4
3.7 LOW· v3
N/A· v2
Cosign provides code signing and transparency for containers and binaries. In versions 3.0.4 and below, an issuing certificate with a validity that expires before the leaf certificate will be considered valid during veri...Show more
Cosign provides code signing and transparency for containers and binaries. In versions 3.0.4 and below, an issuing certificate with a validity that expires before the leaf certificate will be considered valid during verification even if the provided timestamp would mean the issuing certificate should be considered expired. When verifying artifact signatures using a certificate, Cosign first verifies the certificate chain using the leaf certificate's "not before" timestamp and later checks expiry of the leaf certificate using either a signed timestamp provided by the Rekor transparency log or from a timestamp authority, or using the current time. The root and all issuing certificates are assumed to be valid during the leaf certificate's validity. There is no impact to users of the public Sigstore infrastructure. This may affect private deployments with customized PKIs. This issue has been fixed in version 3.0.5.Show less
1Apache
2Tomcat
Tomcat Native
Jul 15, 2026
Feb 17, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Improper Input Validation vulnerability in Apache Tomcat Native, Apache Tomcat. When using an OCSP responder, Tomcat Native (and Tomcat's FFM port of the Tomcat Native code) did not complete verification or freshness ch...Show more
Improper Input Validation vulnerability in Apache Tomcat Native, Apache Tomcat. When using an OCSP responder, Tomcat Native (and Tomcat's FFM port of the Tomcat Native code) did not complete verification or freshness checks on the OCSP response which could allow certificate revocation to be bypassed. This issue affects Apache Tomcat Native:  from 1.3.0 through 1.3.4, from 2.0.0 through 2.0.11; Apache Tomcat: from 11.0.0-M1 through 11.0.17, from 10.1.0-M7 through 10.1.51, from 9.0.83 through 9.0.114. The following versions were EOL at the time the CVE was created but are known to be affected: from 1.1.23 through 1.1.34, from 1.2.0 through 1.2.39. Older EOL versions are not affected. Apache Tomcat Native users are recommended to upgrade to versions 1.3.5 or later or 2.0.12 or later, which fix the issue. Apache Tomcat users are recommended to upgrade to versions 11.0.18 or later, 10.1.52 or later or 9.0.115 or later which fix the issue.Show less
1Apache
1Tomcat
Jun 17, 2026
Feb 17, 2026
N/A· v4
9.1 CRITICAL· v3
N/A· v2
Improper Input Validation vulnerability. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.14, from 10.1.0-M1 through 10.1.49, from 9.0.0-M1 through 9.0.112. The following versions were EOL at the time the...Show more
Improper Input Validation vulnerability. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.14, from 10.1.0-M1 through 10.1.49, from 9.0.0-M1 through 9.0.112. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100. Older EOL versions are not affected. Tomcat did not validate that the host name provided via the SNI extension was the same as the host name provided in the HTTP host header field. If Tomcat was configured with more than one virtual host and the TLS configuration for one of those hosts did not require client certificate authentication but another one did, it was possible for a client to bypass the client certificate authentication by sending different host names in the SNI extension and the HTTP host header field. The vulnerability only applies if client certificate authentication is only enforced at the Connector. It does not apply if client certificate authentication is enforced at the web application. Users are recommended to upgrade to version 11.0.15 or later, 10.1.50 or later or 9.0.113 or later, which fix the issue.Show less
-
-
Jul 5, 2026
Feb 17, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
An issue in the TLS certification mechanism of Guardian Gryphon v01.06.0006.22 allows attackers to execute commands as root.
-
-
Sep 3, 2026
Feb 13, 2026
2.5 LOW· v4
N/A· v3
N/A· v2
Improper Certificate Validation vulnerability in Thales SafeNet Agent for Windows Logon on Windows allows Signature Spoofing by Improper Validation. This issue affects SafeNet Agent for Windows Logon: 4.0.0, 4.1.1, 4.1....Show more
Improper Certificate Validation vulnerability in Thales SafeNet Agent for Windows Logon on Windows allows Signature Spoofing by Improper Validation. This issue affects SafeNet Agent for Windows Logon: 4.0.0, 4.1.1, 4.1.2.Show less
1Tp Link
14Aginet
DecoFesta+11 more
Jun 17, 2026
Feb 13, 2026
7.7 HIGH· v4
8.1 HIGH· v3
N/A· v2
A vulnerability in the certificate validation logic may allow applications to accept untrusted or improperly validated server identities during TLS communication. An attacker in a privileged network position may be able...Show more
A vulnerability in the certificate validation logic may allow applications to accept untrusted or improperly validated server identities during TLS communication. An attacker in a privileged network position may be able to intercept or modify traffic if they can position themselves within the communication channel. Successful exploitation may compromise confidentiality, integrity, and availability of application data.Show less
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-
Jun 17, 2026
Feb 12, 2026
N/A· v4
9.4 CRITICAL· v3
N/A· v2
The affected devices do not validate the server certificate when connecting to the SolaX Cloud MQTTS server hosted in the Alibaba Cloud (mqtt001.solaxcloud.com, TCP 8883). This allows attackers in a man-in-the-middle pos...Show more
The affected devices do not validate the server certificate when connecting to the SolaX Cloud MQTTS server hosted in the Alibaba Cloud (mqtt001.solaxcloud.com, TCP 8883). This allows attackers in a man-in-the-middle position to act as the legitimate MQTT server and issue arbitrary commands to devices.Show less
-
-
Jun 17, 2026
Feb 11, 2026
1.3 LOW· v4
N/A· v3
N/A· v2
An improper certificate validation vulnerability in PAN-OS allows users to connect Terminal Server Agents on Windows to PAN-OS using expired certificates even if the PAN-OS configuration would not normally permit them to...Show more
An improper certificate validation vulnerability in PAN-OS allows users to connect Terminal Server Agents on Windows to PAN-OS using expired certificates even if the PAN-OS configuration would not normally permit them to do so.Show less
1Sunbird
1Sunbirded Portal
Jun 17, 2026
Feb 11, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
An issue in Sunbird-Ed SunbirdEd-portal v1.13.4 allows attackers to obtain sensitive information. The application disables TLS/SSL certificate validation by setting 'rejectUnauthorized': false in HTTP request options
1Microsoft
1Azure Local
Jun 17, 2026
Feb 10, 2026
N/A· v4
8.1 HIGH· v3
N/A· v2
Improper certificate validation in Azure Local allows an unauthorized attacker to execute code over a network.
1Sumatrapdfreader
1Sumatrapdf
Jun 17, 2026
Feb 9, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
SumatraPDF is a multi-format reader for Windows. In 3.5.0 through 3.5.2, SumatraPDF's update mechanism disables TLS hostname verification (INTERNET_FLAG_IGNORE_CERT_CN_INVALID) and executes installers without signature c...Show more
SumatraPDF is a multi-format reader for Windows. In 3.5.0 through 3.5.2, SumatraPDF's update mechanism disables TLS hostname verification (INTERNET_FLAG_IGNORE_CERT_CN_INVALID) and executes installers without signature checks. A network attacker with any valid TLS certificate (e.g., Let's Encrypt) can intercept the update check request, inject a malicious installer URL, and achieve arbitrary code execution.Show less
-
-
Jun 17, 2026
Feb 9, 2026
N/A· v4
5.7 MEDIUM· v3
N/A· v2
The server identity check mechanism for firmware upgrade performed via command shell is insecurely implemented potentially allowing an attacker to perform a Man-in-the-middle attack. This security issue has been fixed in...Show more
The server identity check mechanism for firmware upgrade performed via command shell is insecurely implemented potentially allowing an attacker to perform a Man-in-the-middle attack. This security issue has been fixed in the latest firmware version of Eaton Network M3 which is available on the Eaton download center.Show less
1Datahub
1Datahub
Jun 17, 2026
Feb 6, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
DataHub is an open-source metadata platform. Prior to version 1.3.1.8, the LDAP ingestion source is vulnerable to MITM attack through TLS downgrade. This issue has been patched in version 1.3.1.8.
1Tanium
1Tanos
Jun 17, 2026
Feb 5, 2026
N/A· v4
3.7 LOW· v3
N/A· v2
Tanium addressed an improper certificate validation vulnerability in Tanium Appliance.
1Golang
1Go
Jun 17, 2026
Feb 5, 2026
N/A· v4
10.0 CRITICAL· v3
N/A· v2
During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have...Show more
During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have failed. This may happen when a user calls Config.Clone and mutates the returned Config, or uses Config.GetConfigForClient. This can cause a client to resume a session with a server that it would not have resumed with during the initial handshake, or cause a server to resume a session with a client that it would not have resumed with during the initial handshake.Show less
1Tp Link
2Tapo H100 Firmware
Tapo P100 Firmware
Jun 17, 2026
Feb 5, 2026
7.5 HIGH· v4
8.8 HIGH· v3
N/A· v2
An Improper Certificate Validation vulnerability in TP-Link Tapo H100 v1 and Tapo P100 v1 allows an on-path attacker on the same network segment to intercept and modify encrypted device-cloud communications.  This may co...Show more
An Improper Certificate Validation vulnerability in TP-Link Tapo H100 v1 and Tapo P100 v1 allows an on-path attacker on the same network segment to intercept and modify encrypted device-cloud communications.  This may compromise the confidentiality and integrity of device-to-cloud communication, enabling manipulation of device data or operations.Show less
1Alistgo
1Alist
Jun 17, 2026
Feb 4, 2026
N/A· v4
7.4 HIGH· v3
N/A· v2
Alist is a file list program that supports multiple storages, powered by Gin and Solidjs. Prior to version 3.57.0, the application disables TLS certificate verification by default for all outgoing storage driver communic...Show more
Alist is a file list program that supports multiple storages, powered by Gin and Solidjs. Prior to version 3.57.0, the application disables TLS certificate verification by default for all outgoing storage driver communications, making the system vulnerable to Man-in-the-Middle (MitM) attacks. This enables the complete decryption, theft, and manipulation of all data transmitted during storage operations, severely compromising the confidentiality and integrity of user data. This issue has been patched in version 3.57.0.Show less
1Asustor
1Data Master
Jun 17, 2026
Feb 3, 2026
6.3 MEDIUM· v4
5.6 MEDIUM· v3
N/A· v2
A third-party NAT traversal module fails to validate SSL/TLS certificates when connecting to the signaling server. While subsequent access to device services requires additional authentication, a Man-in-the-Middle (MitM)...Show more
A third-party NAT traversal module fails to validate SSL/TLS certificates when connecting to the signaling server. While subsequent access to device services requires additional authentication, a Man-in-the-Middle (MitM) attacker can intercept or redirect the NAT tunnel establishment. This could allow an attacker to disrupt service availability or facilitate further targeted attacks by acting as a proxy between the user and the device services. Affected products and versions include: from ADM 4.1.0 through ADM 4.3.3.ROF1 as well as from ADM 5.0.0 through ADM 5.1.1.RCI1.Show less
1Asustor
1Data Master
Jun 17, 2026
Feb 3, 2026
6.3 MEDIUM· v4
3.7 LOW· v3
N/A· v2
The DDNS function uses an insecure HTTP connection or fails to validate the SSL/TLS certificate when querying an external server for the device's WAN IP address. An unauthenticated remote attacker can perform a Man-in-th...Show more
The DDNS function uses an insecure HTTP connection or fails to validate the SSL/TLS certificate when querying an external server for the device's WAN IP address. An unauthenticated remote attacker can perform a Man-in-the-Middle (MitM) attack to spoof the response, leading the device to update its DDNS record with an incorrect IP address. Affected products and versions include: from ADM 4.1.0 through ADM 4.3.3.ROF1 as well as from ADM 5.0.0 through ADM 5.1.1.RCI1.Show less
1Asustor
1Data Master
Jun 17, 2026
Feb 3, 2026
8.9 HIGH· v4
5.9 MEDIUM· v3
N/A· v2
The API communication component fails to validate the SSL/TLS certificate when sending HTTPS requests to the server. An improper certificates validation vulnerability allows an unauthenticated remote attacker can perform...Show more
The API communication component fails to validate the SSL/TLS certificate when sending HTTPS requests to the server. An improper certificates validation vulnerability allows an unauthenticated remote attacker can perform a Man-in-the-Middle (MitM) attack to intercept the cleartext communication, potentially leading to the exposure of sensitive user information, including account emails, MD5 hashed passwords, and device serial numbers. Affected products and versions include: from ADM 4.1.0 through ADM 4.3.3.ROF1 as well as from ADM 5.0.0 through ADM 5.1.1.RCI1.Show less