205647 matches found
EUVD-2026-91326
Improper certificate validation vulnerability in HAVELSAN Inc. Sef - AI Chatbot Platform allows Adversary in the Middle AiTM. This issue affects Sef - AI Chatbot Platform: before 2.1. NOTE: The vendor was contacted and it was learned that the product is not supported...
CVE-2026-63577
Improper certificate validation in the directoryName name-constraint check PkixNameConstraintValidator.WithinDNSubtree in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows an attacker who controls, or can have certificates issued by, a name-constrained intermediate CA to get...
CVE-2026-63576
Improper certificate validation in PkixNameConstraintValidator ExtractHostFromURL in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a name-constrained subordinate CA, or anyone able to obtain certificates with chosen subjectAltName URIs from such a CA, to bypass permitted or...
CVE-2026-103602
Improper certificate validation in PkixNameConstraintValidator in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows an attacker who controls, or can obtain certificates from, a name-constrained intermediate CA to have certificates accepted during PKIX certification path validation fo...
CVE-2026-63569
Improper input validation in DHAgreement.CalculateAgreement MTI/A0 two-pass Diffie-Hellman in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows an on-path attacker to make the local party compute an agreed value the attacker already knows, defeating the key authentication MTI/A0 is...
CVE-2026-103602
The bc-csharp library by Legion of the Bouncy Castle Inc. versions before 2.7.0 is vulnerable to improper certificate validation in the PkixNameConstraintValidator component. The root cause is a failure to remove the RFC 1034 root-label trailing dot during comparison between names and constraints...
CVE-2026-103602 Name constraints bypass via trailing dot in rfc822Name, dNSName and URI hosts
Improper certificate validation in PkixNameConstraintValidator in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows an attacker who controls, or can obtain certificates from, a name-constrained intermediate CA to have certificates accepted during PKIX certification path validation fo...
CVE-2026-103602 Name constraints bypass via trailing dot in rfc822Name, dNSName and URI hosts
Improper certificate validation in PkixNameConstraintValidator in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows an attacker who controls, or can obtain certificates from, a name-constrained intermediate CA to have certificates accepted during PKIX certification path validation fo...
CVE-2026-103602 Name constraints bypass via trailing dot in rfc822Name, dNSName and URI hosts
Improper certificate validation in PkixNameConstraintValidator in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows an attacker who controls, or can obtain certificates from, a name-constrained intermediate CA to have certificates accepted during PKIX certification path validation fo...
EUVD-2026-91232
Improper certificate validation in PkixNameConstraintValidator in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows an attacker who controls, or can obtain certificates from, a name-constrained intermediate CA to have certificates accepted during PKIX certification path validation fo...
CVE-2026-63577 Name Constraints bypass: directoryName constraint matched at any position in the DN instead of as a prefix
Improper certificate validation in the directoryName name-constraint check PkixNameConstraintValidator.WithinDNSubtree in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows an attacker who controls, or can have certificates issued by, a name-constrained intermediate CA to get...
EUVD-2026-91228
Improper certificate validation in the directoryName name-constraint check PkixNameConstraintValidator.WithinDNSubtree in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows an attacker who controls, or can have certificates issued by, a name-constrained intermediate CA to get...
CVE-2026-63577 Name Constraints bypass: directoryName constraint matched at any position in the DN instead of as a prefix
Improper certificate validation in the directoryName name-constraint check PkixNameConstraintValidator.WithinDNSubtree in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows an attacker who controls, or can have certificates issued by, a name-constrained intermediate CA to get...
CVE-2026-63577
The bc-csharp library (versions before 2.7.0 ) by Legion of the Bouncy Castle Inc. contains an improper certificate validation flaw in the PkixNameConstraintValidator.WithinDNSubtree check. The root cause is that the validator identifies the first Relative Distinguished Name (RDN) of a constraint...
CVE-2026-63577 Name Constraints bypass: directoryName constraint matched at any position in the DN instead of as a prefix
Improper certificate validation in the directoryName name-constraint check PkixNameConstraintValidator.WithinDNSubtree in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows an attacker who controls, or can have certificates issued by, a name-constrained intermediate CA to get...
CVE-2026-63576 URI name constraints checked against a mis-parsed host
Improper certificate validation in PkixNameConstraintValidator ExtractHostFromURL in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a name-constrained subordinate CA, or anyone able to obtain certificates with chosen subjectAltName URIs from such a CA, to bypass permitted or...
CVE-2026-63576 URI name constraints checked against a mis-parsed host
Improper certificate validation in PkixNameConstraintValidator ExtractHostFromURL in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a name-constrained subordinate CA, or anyone able to obtain certificates with chosen subjectAltName URIs from such a CA, to bypass permitted or...
CVE-2026-63576
The bc-csharp library by Legion of the Bouncy Castle Inc. (versions before 2.7.0 ) contains an improper certificate validation vulnerability in the PkixNameConstraintValidator (specifically the ExtractHostFromURL function). The root cause is that the software extracts the host from a URI using st...
CVE-2026-63576 URI name constraints checked against a mis-parsed host
Improper certificate validation in PkixNameConstraintValidator ExtractHostFromURL in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a name-constrained subordinate CA, or anyone able to obtain certificates with chosen subjectAltName URIs from such a CA, to bypass permitted or...
EUVD-2026-91227
Improper certificate validation in PkixNameConstraintValidator ExtractHostFromURL in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a name-constrained subordinate CA, or anyone able to obtain certificates with chosen subjectAltName URIs from such a CA, to bypass permitted or...