Weakness (CWE)
CWE-295: Improper Certificate Validation
The product does not validate, or incorrectly validates, a certificate.
How to prevent it (2 mitigations)
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Architecture and Design, Implementation
Certificates should be carefully managed and checked to assure that data are encrypted with the intended owner's public key.
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Implementation
If certificate pinning is being used, ensure that all relevant properties of the certificate are fully validated before the certificate is pinned, including the hostname.
Source: MITRE CWE-295
41 results · Clear filters · Feed
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Critical 10.0CVE-2026-112816 Public exploit
Improper certificate validation in the HTTPS listener in LXD
Improper certificate validation in the HTTPS listener in Canonical LXD 4.0.14, 5.0.10, 5.21.8, 6.9 before 4.0.15, 5.0.11, 5.21.9, 6.10.1 allows an unauthenticated attacker to authenticate as any trusted client and gain full access to the cluster and managed v…
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High 8.7CVE-2026-92744 Public exploit
Delinea Privilege Manager agent unauthenticated remote code execution vulnerability
Under certain conditions, privilege manager agent allows a remote unauthenticated attacker to execute arbitrary code as LocalSystem.
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High 7.4CVE-2026-106069 Public exploit
A flaw in Node.js TLS hostname verification can cause a server certificate to be validated against a different IP addre…
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Medium 6.7CVE-2026-106072 Public exploit
A flaw in Node.js TLS hostname verification allows a certificate with only a DNS SAN to authenticate an IP endpoint whe…
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High 7.4CVE-2026-105483 Public exploit
A flaw in Node.js TLS hostname verification allows a certificate without a matching IP address SAN to authenticate a co…
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Medium 5.9CVE-2026-85247 Public exploit
Apache Camel: Camel-Knative Improper Certificate Validation When SSL Is Enabled Without a Truststore
Improper Certificate Validation vulnerability in Apache Camel Knative component. This issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.1. When SSL was enabled on the Knative HTTP client but no truststore was configured, the client…
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High 7.4CVE-2026-105221 Public exploit
Gist RubyGem before 6.1.0 Disabled TLS Certificate Verification
The gist RubyGem before 6.1.0 contains an improper certificate validation vulnerability that allows on-path attackers to intercept HTTPS traffic because http_connection in lib/gist.rb sets VERIFY_NONE. Attackers can present any certificate to read or modify G…
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High 7.4CVE-2026-15911 Public exploit
Confluent Kafka Python Improper TLS Certificate Validation
Confluent Kafka Python client's HashiCorp Vault KMS integration could allow a remote attacker to obtain sensitive information due to improper TLS certificate validation.
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High 7.4CVE-2026-100835 Public exploit
Contrast before 1.16.0 Remote Attestation Relay Attack
Contrast before 1.16.0 is susceptible to remote attestation relay attacks. Contrast accepted any TEE attestation report that verified correctly and contained the expected firmware patch levels and software measurements, regardless of which machine produced it…
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Critical 9.1CVE-2026-86881 Public exploit
A certificate validation issue was addressed with improved certificate validation. This issue is fixed in iOS 26.7 and …
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Critical 9.8
Improper Certificate Validation in Quantum Security Gateway
Improper certificate trust validation during VPN negotiation in Check Point Quantum Security Gateway may allow an unauthenticated remote attacker to execute arbitrary code on the Gateway.
KEV Sep 22, 2026 -
High 7.4CVE-2026-67598 Public exploit
Emlog Pro 2.6.23 TLS Certificate Validation Disabled in ai.php
Emlog Pro through 2.6.23 contains a disabled TLS certificate validation vulnerability in include/service/ai.php that allows network-adjacent attackers to intercept outbound HTTPS requests to configured LLM providers by presenting arbitrary TLS certificates, a…
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Critical 9.3CVE-2026-58062 Public exploit
Stapled OCSP response accepted without binding to the checked certificate
In Bouncy Castle for Java before 1.85, Stapled OCSP response accepted without binding to the checked certificate. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 2.0.2 (2.0.X series) a…
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Medium 6.8CVE-2026-22747 Public exploit
Unauthorized User Impersonation when Using X.509 Client Certificates
Vulnerability in Spring Spring Security. SubjectX500PrincipalExtractor does not correctly handle certain malformed X.509 certificate CN values, which can lead to reading the wrong value for the username. In a carefully crafted certificate, this can lead to an…
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Medium 4.8CVE-2026-32794 Public exploit
Apache Airflow Provider for Databricks: TLS Certificate Verification Disabled in Databricks Provider K8s Token Exchange
Improper Certificate Validation vulnerability in Apache Airflow Provider for Databricks. Provider code did not validate certificates for connections to Databricks back-end which could result in a man-of-a-middle attack that traffic is intercepted and manipula…
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High 7.5CVE-2025-65753 Public exploit
An issue in the TLS certification mechanism of Guardian Gryphon v01.06.0006.22 allows attackers to execute commands as …
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High 7.5CVE-2026-25961 Public exploit
SumatraPDF Update MITM -> Arbitrary Code Execution
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 vali…
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High 8.8CVE-2025-50944 Public exploit
An issue was discovered in the method push.lite.avtech.com.MySSLSocketFactoryNew.checkServerTrusted in AVTECH EagleEyes…
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Medium 6.0CVE-2025-0309 Public exploit
Netskope Client Local Elevation of Privileges
An insufficient validation on the server connection endpoint in Netskope Client allows local users to elevate privileges on the system. The insufficient validation allows Netskope Client to connect to any other server with Public Signed CA TLS certificates an…
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High 8.1CVE-2025-54424 Public exploit
1Panel Agent Bypasses Certificate Verification Leading to Arbitrary Command Execution
1Panel is a web interface and MCP Server that manages websites, files, containers, databases, and LLMs on a Linux server. In versions 2.0.5 and below, the HTTPS protocol used for communication between the Core and Agent endpoints has incomplete certificate ve…
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Medium 4.7CVE-2025-36041 Public exploit
IBM MQ improper certificate validation
IBM MQ Operator LTS 2.0.0 through 2.0.29, MQ Operator CD 3.0.0, 3.0.1, 3.1.0 through 3.1.3, 3.3.0, 3.4.0, 3.4.1, 3.5.0, 3.5.1 through 3.5.3, and MQ Operator SC2 3.2.0 through 3.2.12 Native HA CRR could be configured with a private key and chain other than the…
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Medium 5.9CVE-2025-32407 Public exploit
Samsung Internet for Galaxy Watch version 5.0.9, available up until Samsung Galaxy Watch 3, does not properly validate …
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Medium 4.2CVE-2024-52510 Public exploit
Nextcloud Desktop client behaves incorrectly if the initial end-to-end-encryption signature is empty
The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with your computer. The Desktop client did not stop with an error but allowed by-passing the signature validation, if a manipulated server sends an empty initial signature. It i…
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Critical 9.8CVE-2024-49369 Public exploit
Icinga 2 has a TLS Certificate Validation Bypass for JSON-RPC and HTTP API Connections
Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. The TLS certificate validation in all Icinga 2 versions starting from 2.4.0 was flawed, allowing an atta…
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High 8.1CVE-2024-51774 Public exploit
qBittorrent before 5.0.1 proceeds with use of https URLs even after certificate validation errors.
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High 7.4CVE-2023-1514 Public exploit
A vulnerability exists in the component RTU500 Scripting interface. When a client connects to a server using TLS, the s…
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Medium 5.5
A certificate validation issue was addressed. This issue is fixed in macOS Ventura 13.6, iOS 16.7 and iPadOS 16.7. A ma…
KEV Sep 25, 2023 -
Critical 9.8
An authentication bypass in Optoma 1080PSTX C02 allows an attacker to access the administration console without valid c…
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High 7.8
In WorkSource, there is a possible parcel mismatch. This could lead to local escalation of privilege with no additional…
KEV Apr 13, 2023 -
High 7.5CVE-2023-0464 Public exploit
Excessive Resource Usage Verifying X.509 Policy Constraints
A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit this vulnerability by creating a malicious certificate …
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Medium 5.5CVE-2022-26766 Public exploit
A certificate parsing issue was addressed with improved checks. This issue is fixed in tvOS 15.5, iOS 15.5 and iPadOS 1…
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High 8.8
Active Directory Domain Services Elevation of Privilege Vulnerability
Active Directory Domain Services Elevation of Privilege Vulnerability
KEV Aug 18, 2022 -
High 7.4
CA certificate check bypass with X509_V_FLAG_X509_STRICT
The X509_V_FLAG_X509_STRICT flag enables additional security checks of the certificates present in a certificate chain. It is not set by default. Starting from OpenSSL version 1.1.1h a check to disallow certificates in the chain that have explicitly encoded e…
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Unscored —CVE-2020-8289 Public exploit
Backblaze for Windows before 7.0.1.433 and Backblaze for macOS before 7.0.1.434 suffer from improper certificate valida…
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Medium 5.9CVE-2020-13254 Public exploit
Data leakage via cache key collision in Django
An issue was discovered in Django 2.2 before 2.2.13 and 3.0 before 3.0.7. In cases where a memcached backend does not perform key validation, passing malformed cache keys could result in a key collision, and potential data leakage.
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Low 3.7CVE-2020-9488 Public exploit
Improper validation of certificate with host mismatch in Apache Log4j SMTP appender
Improper validation of certificate with host mismatch in Apache Log4j SMTP appender. This could allow an SMTPS connection to be intercepted by a man-in-the-middle attack which could leak any log messages sent through that appender. Fixed in Apache Log4j 2.12.…
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High 8.1
Certificate validation bypass on Windows in crypto/x509
A spoofing vulnerability exists in the way Windows CryptoAPI (Crypt32.dll) validates Elliptic Curve Cryptography (ECC) certificates.An attacker could exploit the vulnerability by using a spoofed code-signing certificate to sign a malicious executable, making …
KEV Nov 3, 2021 -
Medium —CVE-2017-0248 Public exploit
Moderate severity vulnerability that affects Microsoft.AspNetCore.Mvc and Microsoft.AspNetCore.Mvc.Core
Microsoft .NET Framework 2.0, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2 and 4.7 allow an attacker to bypass Enhanced Security Usage taggings when they present a certificate that is invalid for a specific use, aka ".NET Security Feature Bypass Vulnerability."
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Medium 5.9CVE-2016-2402 Public exploit
Improper Certificate Validation in OkHttp
OkHttp before 2.7.4 and 3.x before 3.1.2 allows man-in-the-middle attackers to bypass certificate pinning by sending a certificate chain with a certificate from a non-pinned trusted CA and the pinned certificate.
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Low 3.7
The TLS protocol 1.2 and earlier, when a DHE_EXPORT ciphersuite is enabled on a server but not on a client, does not pr…