CWE-297— Improper Validation of Certificate with Host Mismatch
The product communicates with a host that provides a certificate, but the product does not properly ensure that the certificate is actually associated with that host.— MITRE CWE catalog
92 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-297page 1 of 2
- CVE-2025-46408CRITICALCVSS 9.8EG 9.82025-09-15
An issue was discovered in the methods push.lite.avtech.com.AvtechLib.GetHttpsResponse and push.lite.avtech.com.Push_HttpService.getNewHttpClient in AVTECH EagleEyes 2.0.0. The methods set ALLOW_ALL_HOSTNAME_VERIFIER, bypassing domain vali…
- CVE-2026-63374CRITICALCVSS 9.3EG 9.32026-09-18
AnyIO is a high level asynchronous concurrency and networking framework that works on top of either Trio or asyncio. Prior to 4.14.2, connect_tcp() and TLSStream.wrap() can validate internationalized host names after the standard library c…
- CVE-2026-84197CRITICALCVSS 9.2EG 9.22026-09-08
In Eclipse Ditto's Node.js JavaScript client, all released versions of @eclipse-ditto/ditto-javascript-client-node from 2.0.0 to 3.9.0 and of its predecessor package @eclipse-ditto/ditto-javascript-client-node_1.0 from 1.0.0 to 2.1.0, the …
- CVE-2026-15925CRITICALCVSS 9.2EG 9.22026-07-16
Improper TLS hostname verification in Snowflake Connector for Python versions prior to 4.7.1 and 3.18.1 may have allowed a network-positioned attacker to bypass certificate hostname validation on HTTPS connections made by the connector. An…
- CVE-2026-48144CRITICALCVSS 9.1EG 9.12026-07-27
Improper Validation of Certificate with Host Mismatch vulnerability in Apache Thrift c_glib bindings. This issue affects Apache Thrift: before 0.24.0. Users are recommended to upgrade to version 0.24.0, which fixes the issue.
- CVE-2026-49457CRITICALCVSS 9.1EG 9.12026-07-01
erlang_quic is a pure Erlang QUIC implementation. Prior to version 1.4.4, the QUIC client did not authenticate the server during the TLS 1.3 handshake. The CertificateVerify signature was not checked, the certificate chain was not validate…
- CVE-2025-68637CRITICALCVSS 9.1EG 9.12026-01-07
The Uniffle HTTP client is configured to trust all SSL certificates and disables hostname verification by default. This insecure configuration exposes all REST API communication between the Uniffle CLI/client and the Uniffle Coordinator s…
- CVE-2021-33695CRITICALCVSS 9.1EG 9.12021-09-15
Potentially, SAP Cloud Connector, version - 2.0 communication with the backend is accepted without sufficient validation of the certificate.
- CVE-2020-1887CRITICALCVSS 9.1EG 9.12020-03-13
Incorrect validation of the TLS SNI hostname in osquery versions after 2.9.0 and before 4.2.0 could allow an attacker to MITM osquery traffic in the absence of a configured root chain of trust.
- CVE-2020-11050CRITICALCVSS 9.0EG 9.02020-05-07
In Java-WebSocket less than or equal to 1.4.1, there is an Improper Validation of Certificate with Host Mismatch where WebSocketClient does not perform SSL hostname validation. This has been patched in 1.5.0.
- CVE-2021-21385HIGHCVSS 8.8EG 8.82021-03-24
Mifos-Mobile Android Application for MifosX is an Android Application built on top of the MifosX Self-Service platform. Mifos-Mobile before commit e505f62 disables HTTPS hostname verification of its HTTP client. Additionally it accepted an…
- CVE-2026-59638HIGHCVSS 6.5EG 8.62026-08-03
In Bouncy Castle for Java before 1.85, JSSE hostname verifier CN-fallback enabled by default despite documented opt-in. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bctl…
- CVE-2026-35563HIGHCVSS 8.5EG 8.52026-06-01
It was identified that the LDAP client implementation in version 2.1.7 does not verify if the server certificate matches the intended LDAP hostname. While the underlying code validates the certificate chain against a trusted authority, t…
- CVE-2025-3501HIGHCVSS 8.2EG 8.22025-04-29
A flaw was found in Keycloak. By setting a verification policy to 'ALL', the trust store certificate verification is skipped, which is unintended.
- CVE-2026-92943HIGHCVSS 8.1EG 8.12026-09-17
Improper validation of certificate with host mismatch in the MQTT client TLS connection layer in AWS IoT Device SDK for Python 1.5.3 through 1.6.0 on Python 3.7 and later might allow an adversary-in-the-middle actor to impersonate the AWS …
- CVE-2026-84393HIGHCVSS 8.1EG 8.12026-09-08
A improper validation of certificate with host mismatch vulnerability in Fortinet FortiOS 7.6.1 through 7.6.6, FortiProxy 7.6.2 through 7.6.6 may allow attacker to information disclosure via <insert attack vector here>
- CVE-2026-42790HIGHCVSS 8.1EG 8.12026-05-27
Improper Certificate Validation vulnerability in Erlang OTP public_key (pubkey_cert and public_key modules) allows a DNS nameConstraints bypass via subject CommonName fallback in TLS hostname verification. Two flaws combine to allow a sub…
- CVE-2026-22747HIGHCVSS 8.1EG 8.12026-04-22
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 certific…
- CVE-2025-2190HIGHCVSS 8.1EG 8.12025-03-11
The mobile application (com.transsnet.store) has a man-in-the-middle attack vulnerability, which may lead to code injection risks.
- CVE-2022-41244HIGHCVSS 8.1EG 8.12022-09-21
Jenkins View26 Test-Reporting Plugin 1.0.7 and earlier does not perform hostname validation when connecting to the configured View26 server that could be abused using a man-in-the-middle attack to intercept these connections.
- CVE-2022-41243HIGHCVSS 8.1EG 8.12022-09-21
Jenkins SmallTest Plugin 1.0.4 and earlier does not perform hostname validation when connecting to the configured View26 server that could be abused using a man-in-the-middle attack to intercept these connections.
- CVE-2022-32153HIGHCVSS 8.1EG 8.12022-06-15
Splunk Enterprise peers in Splunk Enterprise versions before 9.0 and Splunk Cloud Platform versions before 8.2.2203 did not validate the TLS certificates during Splunk-to-Splunk communications by default. Splunk peer communications configu…
- CVE-2018-10936HIGHCVSS 8.1EG 8.12018-08-30
A weakness was found in postgresql-jdbc before version 42.2.5. It was possible to provide an SSL Factory and not check the host name if a host name verifier was not provided to the driver. This could lead to a condition where a man-in-the-…
- CVE-2026-19553HIGHCVSS 7.6EG 7.62026-09-30
ssl.SSLContext.wrap_bio() didn't require the server_hostname argument to not be None if ssl.SSLContext.check_hostname was set. Due to a missing parameter check in SSLObject, if the server_hostname argument isn't supplied then hostname veri…
- CVE-2026-59969HIGHCVSS 7.5EG 7.52026-09-16
Apache ZooKeeper quorum TLS fails to enforce peer hostname verification in FIPS-mode deployments. When sslQuorum=true, zookeeper.fips-mode=true, ssl.quorum.hostnameVerification=true, and ssl.quorum.clientHostnameVerification=true are enab…
- CVE-2026-62243HIGHCVSS 7.5EG 7.52026-08-22
Netty (io.netty:netty-handler) versions from 4.2.0.Final through 4.2.16.Final and versions through 4.1.136.Final disable TLS hostname verification on the SslProvider.OPENSSL client path when a plain (non-extended) X509TrustManager is used …
- CVE-2026-65942HIGHCVSS 7.5EG 7.52026-08-10
TLS hostname verification issue in Apache Ranger Client Code in versions <= 2.8.0. Users are recommended to upgrade to version 2.9.0, which fixes this issue.
- CVE-2026-48145HIGHCVSS 7.5EG 7.52026-07-27
Improper Validation of Certificate with Host Mismatch vulnerability in Apache Thrift C++ bindings. This issue affects Apache Thrift: before 0.24.0. Users are recommended to upgrade to version 0.24.0, which fixes the issue.
- CVE-2026-12064HIGHCVSS 7.5EG 7.52026-07-03
When a user invokes curl using a schemeless URL combined with `--proto-default` sftp (or scp), a disconnect occurs between the tool layer and libcurl. The tool layer incorrectly infers the URL scheme, which erroneously bypasses the initial…
- CVE-2026-54275HIGHCVSS 7.5EG 7.52026-06-15
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, the server_hostname TLS SNI check can be bypassed when an existing connection is reused. If an application makes multiple requests to the same…
- CVE-2024-41264HIGHCVSS 7.5EG 7.52024-08-01
An issue discovered in casdoor v1.636.0 allows attackers to obtain sensitive information via the ssh.InsecureIgnoreHostKey() method.
- CVE-2024-34447HIGHCVSS 7.5EG 7.52024-05-03
An issue was discovered in the Bouncy Castle Crypto Package For Java before BC TLS Java 1.0.19 (ships with BC Java 1.78, BC Java (LTS) 2.73.6) and before BC FIPS TLS Java 1.0.19. When endpoint identification is enabled in the BCJSSE and an…
- CVE-2023-5909HIGHCVSS 7.5EG 7.52023-11-30
KEPServerEX does not properly validate certificates from clients which may allow unauthenticated users to connect.
- CVE-2019-13050HIGHCVSS 7.5EG 7.52019-06-29
Interaction between the sks-keyserver code through 1.2.0 of the SKS keyserver network, and GnuPG through 2.2.16, makes it risky to have a GnuPG keyserver configuration line referring to a host on the SKS keyserver network. Retrieving data …
- CVE-2025-25253HIGHCVSS 6.8EG 7.52025-10-14
An Improper Validation of Certificate with Host Mismatch vulnerability [CWE-297] in FortiProxy version 7.6.1 and below, version 7.4.8 and below, 7.2 all versions, 7.0 all versions and FortiOS version 7.6.2 and below, version 7.4.8 and belo…
- CVE-2026-84975HIGHCVSS 7.4EG 7.42026-09-18
PJSIP is a free and open source multimedia communication library written in C. In 2.17 and earlier, the OpenSSL and GnuTLS backends in pjlib/src/pj/ssl_sock_ossl.c and pjlib/src/pj/ssl_sock_gtls.c copy DNS SubjectAltName values with string…
- CVE-2026-15243HIGHCVSS 7.4EG 7.42026-07-24
Apereo CAS Client accepts any CA-trusted certificate for any hostname, provided the URL the client is calling matches the configured allowlist or regex. An attacker with a MITM position (DNS poisoning, rogue Wi-Fi, malicious proxy, etc.) …
- CVE-2026-9547HIGHCVSS 7.4EG 7.42026-07-03
When a libcurl-based application performs transfers via `SCP://` or `SFTP://` and utilizes the `CURLOPT_SSH_KEYFUNCTION` callback, it may silently accept an untrusted server. This vulnerability occurs when a server presents a host key type…
- CVE-2026-44393HIGHCVSS 7.4EG 7.42026-06-04
An issue was discovered in OpenStack oslo.messaging 1.0.0 through 17.3.0. The oslo.messaging RabbitMQ driver does not perform TLS hostname verification when connecting to the message broker. When ssl_ca_file is configured, the driver enabl…
- CVE-2026-26214HIGHCVSS 7.4EG 7.42026-02-12
Galaxy FDS Android SDK (XiaoMi/galaxy-fds-sdk-android) version 3.0.8 and prior disable TLS hostname verification when HTTPS is enabled (the default configuration). In GalaxyFDSClientImpl.createHttpClient(), the SDK configures Apache HttpCl…
- CVE-2024-37015HIGHCVSS 7.4EG 7.42024-08-13
An issue was discovered in Ada Web Server 20.0. When configured to use SSL (which is not the default setting), the SSL/TLS used to establish connections to external services is done without proper hostname validation. This is exploitable b…
- CVE-2020-14387HIGHCVSS 7.4EG 7.42021-05-27
A flaw was found in rsync in versions since 3.2.0pre1. Rsync improperly validates certificate with host mismatch vulnerability. A remote, unauthenticated attacker could exploit the flaw by performing a man-in-the-middle attack using a vali…
- CVE-2022-27890HIGHCVSS 6.3EG 7.42023-02-16
It was discovered that the sls-logging was not verifying hostnames in TLS certificates due to a misuse of the javax.net.ssl.SSLSocketFactory API. A malicious attacker in a privileged network position could abuse this to perform a man-in-th…
- CVE-2023-24568HIGHCVSS 5.0EG 7.42023-05-30
Dell NetWorker, contains an Improper Validation of Certificate with Host Mismatch vulnerability in Rabbitmq port which could disallow replacing CA signed certificates.
- CVE-2026-43869HIGHCVSS 7.3EG 7.32026-05-05
Improper Validation of Certificate with Host Mismatch vulnerability in Apache Thrift. This issue affects Apache Thrift: before 0.23.0. Users are recommended to upgrade to version 0.23.0, which fixes the issue.
- CVE-2024-12925HIGHCVSS 7.3EG 7.32025-09-01
Improper Validation of Certificate with Host Mismatch vulnerability in Akınsoft QR Menü allows HTTP Response Splitting. This issue affects QR Menü: from s1.05.05 before v1.05.12.
- CVE-2024-7346HIGHCVSS 7.2EG 7.22024-09-03
Host name validation for TLS certificates is bypassed when the installed OpenEdge default certificates are used to perform the TLS handshake for a networked connection. This has been corrected so that default certificates are no longer c…
- CVE-2026-79636HIGHCVSS 7.0EG 7.02026-09-09
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains an Improper Validation of Certificate with Host Mismatch vulnerability. An unauthenticated attacker with remote access …
- CVE-2026-85088MEDIUMCVSS 6.9EG 6.92026-10-02
Improper Validation of Certificate with Host Mismatch in the C++ and D libraries of Apache Thrift. Both libraries install a default access manager for client sockets — TSSLSocketFactory does so in C++, and the accessManager property d…
- CVE-2026-59272MEDIUMCVSS 6.8EG 6.82026-08-27
Any application shipping logs to RabbitMQ over TLS via the Log4j2 appender, relying on the documented default, is exposed to man-in-the-middle interception of every log event. Spring AMQP 4.1.0 Spring AMQP 4.0.0 - 4.0.4 Spring AMQP 3.2.0 -…
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