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CWE-297

58 CVEs • Abstraction: Variant • Likelihood of Exploit: High

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.

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CVEs (58)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Palantir
1Gotham Chat Irc
Jun 17, 2026
Feb 16, 2023
N/A· v4
6.8 MEDIUM· v3
N/A· v2
Improper Validation of Certificate with Host Mismatch vulnerability in Gotham Chat IRC helper of Palantir Gotham allows A malicious attacker in a privileged network position could abuse this to perform a man-in-the-middl...Show more
Improper Validation of Certificate with Host Mismatch vulnerability in Gotham Chat IRC helper of Palantir Gotham allows A malicious attacker in a privileged network position could abuse this to perform a man-in-the-middle attack. A successful man-in-the-middle attack would allow them to intercept, read, or modify network communications to and from the affected service. This issue affects: Palantir Palantir Gotham Chat IRC helper versions prior to 30221005.210011.9242.Show less
1Palantir
1Atlasdb
Jun 17, 2026
Feb 16, 2023
N/A· v4
7.4 HIGH· v3
N/A· v2
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...Show more
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-the-middle attack. A successful man-in-the-middle attack would allow them to intercept, read, or modify network communications to and from the affected service. In the case of AtlasDB, the vulnerability was mitigated by other network controls such as two-way TLS when deployed as part of a Palantir platform. Palantir still recommends upgrading to a non-vulnerable version out of an abundance of caution.Show less
1Splunk
2Splunk
Splunk Cloud Platform
Jun 17, 2026
Jun 15, 2022
N/A· v4
8.1 HIGH· v3
6.8 MEDIUM· v2
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 com...Show more
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 configured properly with valid certificates were not vulnerable. However, an attacker with administrator credentials could add a peer without a valid certificate and connections from misconfigured nodes without valid certificates did not fail by default. For Splunk Enterprise, update to Splunk Enterprise version 9.0 and Configure TLS host name validation for Splunk-to-Splunk communications (https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/EnableTLSCertHostnameValidation) to enable the remediation.Show less
1Dell
1Emc Networker
Jun 17, 2026
May 26, 2022
N/A· v4
4.6 MEDIUM· v3
4.9 MEDIUM· v2
Dell EMC NetWorker versions 19.1.x, 19.1.0.x, 19.1.1.x, 19.2.x, 19.2.0.x, 19.2.1.x 19.3.x, 19.3.0.x, 19.4.x, 19.4.0.x, 19.5.x,19.5.0.x, 19.6 and 19.6.0.1 and 19.6.0.2 contain an Improper Validation of Certificate with Ho...Show more
Dell EMC NetWorker versions 19.1.x, 19.1.0.x, 19.1.1.x, 19.2.x, 19.2.0.x, 19.2.1.x 19.3.x, 19.3.0.x, 19.4.x, 19.4.0.x, 19.5.x,19.5.0.x, 19.6 and 19.6.0.1 and 19.6.0.2 contain an Improper Validation of Certificate with Host Mismatch vulnerability in Rabbitmq port 5671 which could allow remote attackers to spoof certificates.Show less
1Sap
1Cloud Connector
Jun 17, 2026
Sep 15, 2021
N/A· v4
9.1 CRITICAL· v3
6.4 MEDIUM· v2
Potentially, SAP Cloud Connector, version - 2.0 communication with the backend is accepted without sufficient validation of the certificate.
1Samba
1Rsync
Jun 17, 2026
May 27, 2021
N/A· v4
7.4 HIGH· v3
5.8 MEDIUM· v2
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...Show more
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 valid certificate for another hostname which could compromise confidentiality and integrity of data transmitted using rsync-ssl. The highest threat from this vulnerability is to data confidentiality and integrity. This flaw affects rsync versions before 3.2.4.Show less
1Mifos
1Mifos Mobile
Jun 17, 2026
Mar 24, 2021
N/A· v4
7.4 HIGH· v3
5.8 MEDIUM· v2
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. Addition...Show more
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 any self-signed certificate as valid. Hostname verification is an important part when using HTTPS to ensure that the presented certificate is valid for the host. Disabling it can allow for man-in-the-middle attacks. Accepting any certificate, even self-signed ones allows man-in-the-middle attacks. This problem is fixed in mifos-mobile commit e505f62.Show less
1Teluu
1Pjsip
Jun 17, 2026
Mar 10, 2021
N/A· v4
6.8 MEDIUM· v3
4.3 MEDIUM· v2
PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In version 2.10 and earlier, PJSIP transport can be...Show more
PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In version 2.10 and earlier, PJSIP transport can be reused if they have the same IP address + port + protocol. However, this is insufficient for secure transport since it lacks remote hostname authentication. Suppose we have created a TLS connection to `sip.foo.com`, which has an IP address `100.1.1.1`. If we want to create a TLS connection to another hostname, say `sip.bar.com`, which has the same IP address, then it will reuse that existing connection, even though `100.1.1.1` does not have certificate to authenticate as `sip.bar.com`. The vulnerability allows for an insecure interaction without user awareness. It affects users who need access to connections to different destinations that translate to the same address, and allows man-in-the-middle attack if attacker can route a connection to another destination such as in the case of DNS spoofing.Show less
1Qnap
1Helpdesk
Nov 21, 2024
Sep 11, 2020
N/A· v4
5.9 MEDIUM· v3
4.3 MEDIUM· v2
The vulnerability have been reported to affect earlier versions of Helpdesk. If exploited, this improper certificate validation vulnerability could allow an attacker to spoof a trusted entity by interfering in the commun...Show more
The vulnerability have been reported to affect earlier versions of Helpdesk. If exploited, this improper certificate validation vulnerability could allow an attacker to spoof a trusted entity by interfering in the communication path between the host and client. QNAP has already fixed the issue in Helpdesk 3.0.3 and later.Show less
1Redhat
2Keycloak
Openstack
Jun 17, 2026
May 15, 2020
N/A· v4
5.9 MEDIUM· v3
4.3 MEDIUM· v2
A flaw was found in Keycloak in versions before 10.0.0, where it does not perform the TLS hostname verification while sending emails using the SMTP server. This flaw allows an attacker to perform a man-in-the-middle (MIT...Show more
A flaw was found in Keycloak in versions before 10.0.0, where it does not perform the TLS hostname verification while sending emails using the SMTP server. This flaw allows an attacker to perform a man-in-the-middle (MITM) attack.Show less
1Java Websocket Project
1Java Websocket
Jun 17, 2026
May 7, 2020
N/A· v4
8.1 HIGH· v3
6.8 MEDIUM· v2
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.
1Linuxfoundation
1Osquery
Jun 17, 2026
Mar 13, 2020
N/A· v4
9.1 CRITICAL· v3
5.8 MEDIUM· v2
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.
1Shibboleth
2Identity Provider
Opensaml Java
Nov 21, 2024
Apr 4, 2019
N/A· v4
5.9 MEDIUM· v3
4.3 MEDIUM· v2
The (1) HttpResource and (2) FileBackedHttpResource implementations in Shibboleth Identity Provider (IdP) before 2.4.1 and OpenSAML Java 2.6.2 do not verify that the server hostname matches a domain name in the subject's...Show more
The (1) HttpResource and (2) FileBackedHttpResource implementations in Shibboleth Identity Provider (IdP) before 2.4.1 and OpenSAML Java 2.6.2 do not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.Show less
2Postgresql
Redhat
2Enterprise Linux
Postgresql Jdbc Driver
Nov 21, 2024
Aug 30, 2018
N/A· v4
8.1 HIGH· v3
6.8 MEDIUM· v2
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...Show more
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-middle attacker could masquerade as a trusted server by providing a certificate for the wrong host, as long as it was signed by a trusted CA.Show less
1Meetcircle
1Circle With Disney Firmware
May 13, 2026
Nov 7, 2017
N/A· v4
5.9 MEDIUM· v3
2.6 LOW· v2
An exploitable vulnerability exists in the remote control functionality of Circle with Disney running firmware 2.0.1. SSL certificates for specific domain names can cause the goclient daemon to accept a different certifi...Show more
An exploitable vulnerability exists in the remote control functionality of Circle with Disney running firmware 2.0.1. SSL certificates for specific domain names can cause the goclient daemon to accept a different certificate than intended. An attacker can host an HTTPS server with this certificate to trigger this vulnerability.Show less
1Meetcircle
1Circle With Disney Firmware
May 13, 2026
Nov 7, 2017
N/A· v4
5.9 MEDIUM· v3
2.6 LOW· v2
An exploitable vulnerability exists in the remote control functionality of Circle with Disney running firmware 2.0.1. SSL certificates for specific domain names can cause the rclient daemon to accept a different certific...Show more
An exploitable vulnerability exists in the remote control functionality of Circle with Disney running firmware 2.0.1. SSL certificates for specific domain names can cause the rclient daemon to accept a different certificate than intended. An attacker can host an HTTPS server with this certificate to trigger this vulnerability.Show less
1Juniper
1Junos
May 6, 2026
Sep 9, 2016
N/A· v4
6.5 MEDIUM· v3
6.4 MEDIUM· v2
PKId in Juniper Junos OS before 12.1X44-D52, 12.1X46 before 12.1X46-D37, 12.1X47 before 12.1X47-D30, 12.3 before 12.3R12, 12.3X48 before 12.3X48-D20, 13.3 before 13.3R10, 14.1 before 14.1R8, 14.1X53 before 14.1X53-D40, 1...Show more
PKId in Juniper Junos OS before 12.1X44-D52, 12.1X46 before 12.1X46-D37, 12.1X47 before 12.1X47-D30, 12.3 before 12.3R12, 12.3X48 before 12.3X48-D20, 13.3 before 13.3R10, 14.1 before 14.1R8, 14.1X53 before 14.1X53-D40, 14.2 before 14.2R7, 15.1 before 15.1R4, 15.1X49 before 15.1X49-D20, 15.1X53 before 15.1X53-D60, and 16.1 before 16.1R1 allow remote attackers to bypass an intended certificate validation mechanism via a self-signed certificate with an Issuer name that matches a valid CA certificate enrolled in Junos.Show less
4Apache
AppleCanonical+1 more
4Opensuse
SubversionUbuntu Linux+1 more
May 6, 2026
Aug 19, 2014
N/A· v4
N/A· v3
4.0 MEDIUM· v2
The Serf RA layer in Apache Subversion 1.4.0 through 1.7.x before 1.7.18 and 1.8.x before 1.8.10 does not properly handle wildcards in the Common Name (CN) or subjectAltName field of the X.509 certificate, which allows m...Show more
The Serf RA layer in Apache Subversion 1.4.0 through 1.7.x before 1.7.18 and 1.8.x before 1.8.10 does not properly handle wildcards in the Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof servers via a crafted certificate.Show less