Shotwell version 0.22.0 (and possibly other versions) is vulnerable to a TLS/SSL certification validation flaw resulting in a potential for man in the middle attacks.

GANMA! App for iOS does not verify SSL certificates.

An information-disclosure issue was discovered in Postman through 6.3.0. It validates a server's X.509 certificate and presents an error if the certificate is not valid. Unfortunately, the associated HTTPS request data is sent anyway. Only the response is not displayed. Thus, all contained information of the HTTPS request is disclosed to a man-in-the-middle attacker (for example, user credentials).

Gurunavi App for iOS before 6.0.0 does not verify SSL certificates which could allow remote attackers to perform man-in-the-middle attacks.

Citrix SD-WAN 10.2.x before 10.2.6 and 11.0.x before 11.0.3 has Missing SSL Certificate Validation.

Inappropriate implementation in WebRTC in Google Chrome prior to 84.0.4147.89 allowed an attacker in a privileged network position to leak cross-origin data via a crafted HTML page.

The RICOH Interactive Whiteboard D2200 V1.3 to V2.2, D5500 V1.3 to V2.2, D5510 V1.3 to V2.2, the display versions with RICOH Interactive Whiteboard Controller Type1 V1.3 to V2.2 attached (D5520, D6500, D6510, D7500, D8400), and the display versions with RICOH Interactive Whiteboard Controller Type2 V3.0 to V3.1.10137.0 attached (D5520, D6510, D7500, D8400) does not verify its server certificates, which allows man-in-the-middle attackers to eversdrop on encrypted communication.

The IBM Spectrum Protect Plus 10.1.0.0 through 10.1.8.x server connection to an IBM Spectrum Protect Plus workload agent is subject to a man-in-the-middle attack due to improper certificate validation. IBM X-Force ID: 182046.

The Subsonic Music Streamer application 4.4 for Android has Improper Certificate Validation of the Subsonic server certificate, which might allow man-in-the-middle attackers to obtain interaction data.

VMware Workspace ONE SDK and dependent mobile application updates address sensitive information disclosure vulnerability.

Multiple Cisco embedded devices use hardcoded X.509 certificates and SSH host keys embedded in the firmware, which allows remote attackers to defeat cryptographic protection mechanisms and conduct man-in-the-middle attacks by leveraging knowledge of these certificates and keys from another installation, aka Bug IDs CSCuw46610, CSCuw46620, CSCuw46637, CSCuw46654, CSCuw46665, CSCuw46672, CSCuw46677, CSCuw46682, CSCuw46705, CSCuw46716, CSCuw46979, CSCuw47005, CSCuw47028, CSCuw47040, CSCuw47048, CSCuw47061, CSCuw90860, CSCuw90869, CSCuw90875, CSCuw90881, CSCuw90899, and CSCuw90913.

In SaltStack Salt before 3002.5, authentication to VMware vcenter, vsphere, and esxi servers (in the vmware.py files) does not always validate the SSL/TLS certificate.

Pivotal Spring AMQP, 1.x versions prior to 1.7.10 and 2.x versions prior to 2.0.6, expose a man-in-the-middle vulnerability due to lack of hostname validation. A malicious user that has the ability to intercept traffic would be able to view data in transit.

IBM WebSphere MQ 8.0 and 9.0 could allow a remote attacker to obtain sensitive information, caused by the failure to properly validate the SSL certificate. An attacker could exploit this vulnerability to obtain sensitive information using man in the middle techniques. IBM X-Force ID: 142598.

PortSwigger Burp Suite before 1.7.34 has Improper Certificate Validation of the Collaborator server certificate, which might allow man-in-the-middle attackers to obtain interaction data.

The FOREX.com FOREXTrader for iPhone app 2.9.12 through 2.9.14 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

LINE for iOS version 7.1.3 to 7.1.5 does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Logstash 1.4.x before 1.4.5 and 1.5.x before 1.5.4 with Lumberjack output or the Logstash forwarder does not validate SSL/TLS certificates from the Logstash server, which might allow attackers to obtain sensitive information via a man-in-the-middle attack.

The KINEPASS App for Android Ver 3.1.1 and earlier, and for iOS Ver 3.1.2 and earlier do not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

ANA App for Android 3.1.1 and earlier, and ANA App for iOS 3.3.6 and earlier does not verify SSL certificates.

Multiple +Message Apps (Softbank +Message App for Android prior to version 10.1.7, Softbank +Message App for iOS prior to version 1.1.23, NTT DOCOMO +Message App for Android prior to version 42.40.2800, NTT DOCOMO +Message App for iOS prior to version 1.1.23, KDDI +Message App for Android prior to version 1.0.6, and KDDI +Message App for iOS prior to version 1.1.23) do not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The Citizens Bank (TX) cbtx-on-the-go/id892396102 app 3.0.0 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

A security misconfiguration vulnerability exists in Schneider Electric's IGSS Mobile application versions 3.01 and prior in which a lack of certificate pinning during the TLS/SSL connection establishing process can result in a man-in-the-middle attack.

The Zipongo - Healthy Recipes and Grocery Deals app before 6.3 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

wpa_supplicant 2.0-16 does not properly check certificate subject name, which allows remote attackers to cause a man-in-the-middle attack.

The "PCB Mobile" by Phelps County Bank app 3.0.2 -- aka pcb-mobile/id436891295 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The Interval International app 3.3 through 3.5.1 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The Quest Information Systems Indiana Voters app 1.1.24 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The "First State Bank of Bigfork Mobile Banking" by First State Bank of Bigfork app 4.0.3 -- aka first-state-bank-of-bigfork-mobile-banking/id1133969876 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The "HBO Mobile Banking" by Heritage Bank of Ozarks app 3.0.0 -- aka hbo-mobile-banking/id860224933 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The Warner Bros. ellentube app 3.1.1 through 3.1.3 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The wawa-employees-credit-union-mobile/id1158082793 app 4.0.1 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The "Fountain Trust Mobile Banking" by FOUNTAIN TRUST COMPANY app before 3.2.0 -- aka fountain-trust-mobile-banking/id891343006 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The "BNB Mobile Banking" by Brady National Bank app 3.0.0 -- aka bnb-mobile-banking/id674215747 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The "First Citizens Bank-Mobile Banking" by First Citizens Bank (AL) app 3.0.0 -- aka first-citizens-bank-mobile-banking/id566037101 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The YottaMark ShopWell - Healthy Diet & Grocery Food Scanner app 5.3.7 through 5.4.2 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The "Community State Bank - Lamar Mobile Banking" by Community State Bank - Lamar app 3.0.3 -- aka community-state-bank-lamar-mobile-banking/id1083927885 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The Radio Javan app 9.3.4 through 9.6.1 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The Lee Bank & Trust lbtc-mobile/id1068984753 app 3.0.1 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The Life Before Us Yo app 2.5.8 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The MoboTap Dolphin Web Browser - Fast Private Internet Search app 9.23.0 through 9.23.2 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The "Middleton Community Bank Mobile Banking" by Middleton Community Bank app 3.0.0 -- aka middleton-community-bank-mobile-banking/id721843238 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The cayuga-lake-national-bank/id1151601539 app 4.0.1 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The North Adams State Bank (Ursa) nasb-mobile-banking/id980573797 app 3.0.1 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Acceptance of invalid/self-signed TLS certificates in "Panda Mobile Security" 1.1 for iOS allows a man-in-the-middle and/or physically proximate attacker to silently intercept information sent during the login API call.

An issue was discovered in certain Apple products. macOS before 10.12.5 is affected. The issue involves the "802.1X" component. It allows remote attackers to discover the network credentials of arbitrary users by operating a crafted network that requires 802.1X authentication, because EAP-TLS certificate validation mishandles certificate changes.

The Yodobashi App for Android 1.2.1.0 and earlier does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Honda Moto LINC 1.6.1 does not verify SSL certificates.

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.

An issue was discovered in ssl.c in Axel before 2.17.8. The TLS implementation lacks hostname verification.