The vulnerability of the X.509 Certificate Handler component of the cryptographic C++ Botan library allows a perpetrator to forge OCSP responses.

The vulnerability of the X.509 Certificate Handler component of the C++ Botan cryptographic library is related to errors in verifying the cryptographic signature. Exploiting this vulnerability could allow a malicious actor to forge OCSP responses remotely...

The vulnerability of the X509 Path Validation Handler component of the cryptographic C++ Botan library allows a hacker to forge OCSP responses.

The vulnerability of the X509 Path Validation Handler component in the C++ Botan cryptographic library is related to errors in verifying the cryptographic signature. Exploiting this vulnerability could allow a malicious actor to forge OCSP responses remotely...

Astra Linux – Vulnerability in Botan

Botan is a C++ cryptography library. Starting from version 2.3.0 and before version 3.11.0, during SM2 decryption, the code responsible for checking the authentication code value C3 failed to verify that the encoded value had the expected length before comparison. An invalid ciphertext could lead...

The vulnerability of the SM2 Handler component in the C++ Botan cryptographic library allows a hacker to induce a service failure and disclose confidential information.

The vulnerability of the SM2 Handler component in the C++ Botan cryptographic library is related to reading data beyond the permitted range of memory. Exploiting this vulnerability can allow a remote attacker to cause service failures and expose confidential information...

CVE-2026-44378

Botan is a C++ cryptography library. Prior to 3.12.0, certain patterns of indefinite length encodings in BER data could cause quadratic behavior in the parser, resulting in a denial of service. Such BER encodings were accepted even in structures which are required to be encoded as DER, which...

CVE-2026-44378

Botan is a C++ cryptography library. Prior to 3.12.0, certain patterns of indefinite length encodings in BER data could cause quadratic behavior in the parser, resulting in a denial of service. Such BER encodings were accepted even in structures which are required to be encoded as DER, which...

CVE-2026-44378 Botan: Quadratic complexity decoding BER indefinite length encodings

Botan is a C++ cryptography library. Prior to 3.12.0, certain patterns of indefinite length encodings in BER data could cause quadratic behavior in the parser, resulting in a denial of service. Such BER encodings were accepted even in structures which are required to be encoded as DER, which...

Botan 安全漏洞

Botan is a C++ encryption library developed by Jack Lloyd as an individual project. Versions of Botan prior to 3.12.0 contained security vulnerabilities. These vulnerabilities were caused byBER data, which led to reassembly behavior by the parser, potentially resulting in denial-of-service attack...

[SECURITY] Fedora 44 Update: botan3-3.9.0-7.fc44

Botan is a BSD-licensed crypto library written in C++. It provides a wide variety of basic cryptographic algorithms, X.509 certificates and CRLs, PKCS \11 certificate requests, a filter/pipe message processing system, and a wide variety of other features, all written in portable C++. The API...

OPENSUSE-SU-2026:20566-1 Security update for Botan

This update for Botan fixes the following issue: - CVE-2026-32884: Certificate validation bypass due to mixed-case Common Name in X.509 certificates bsc1261993...

SUSE CVE-2026-32884

Botan is a C++ cryptography library. Prior to version 3.11.0, during processing of an X.509 certificate path using name constraints which restrict the set of allowable DNS names, if no subject alternative name is defined in the end-entity certificate Botan would check that the CN was allowed by t...

SUSE CVE-2026-34580

Botan is a C++ cryptography library. In 3.11.0, the function CertificateStore::certificateknown had a misleading name; it would return true if any certificate in the store had a DN and subject key identifier, if set matching that of the argument. It did not check that the cert it found and the ce...

CVE-2026-34580

A flaw was found in Botan, a C++ cryptography library. Due to a misleading function name and an assumption in path validation logic, an end entity certificate could be incorrectly accepted as a trusted root. This occurs when the end entity certificate's Distinguished Name DN and Subject Key...

CVE-2026-34582

A flaw was found in Botan, a C++ cryptography library. The TLS 1.3 implementation in Botan allows application data to be processed before the TLS handshake is fully completed. A remote attacker can exploit this by omitting critical client authentication messages, such as the Certificate,...

Linux Distros Unpatched Vulnerability : CVE-2026-34580

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Botan is a C++ cryptography library. In 3.11.0, the function CertificateStore::certificateknown had a misleading name; it would return true if any certificate i...

CVE-2026-34580

Botan is a C++ cryptography library. In 3.11.0, the function CertificateStore::certificateknown had a misleading name; it would return true if any certificate in the store had a DN and subject key identifier, if set matching that of the argument. It did not check that the cert it found and the ce...

ALPINE-CVE-2026-34582

Botan is a C++ cryptography library. Prior to version 3.11.1, the TLS 1.3 implementation allowed ApplicationData records to be processed prior to the Finished message being received. A server which is attempting to enforce client authentication via certificates can by bypassed by a client which...

CVE-2026-34582

Botan is a C++ cryptography library. Prior to version 3.11.1, the TLS 1.3 implementation allowed ApplicationData records to be processed prior to the Finished message being received. A server which is attempting to enforce client authentication via certificates can by bypassed by a client which...

UBUNTU-CVE-2026-34582

Botan is a C++ cryptography library. Prior to version 3.11.1, the TLS 1.3 implementation allowed ApplicationData records to be processed prior to the Finished message being received. A server which is attempting to enforce client authentication via certificates can by bypassed by a client which...

UBUNTU-CVE-2026-34580

Botan is a C++ cryptography library. In 3.11.0, the function CertificateStore::certificateknown had a misleading name; it would return true if any certificate in the store had a DN and subject key identifier, if set matching that of the argument. It did not check that the cert it found and the ce...