CVE-2026-34582

Botan TLS 1.3 vulnerability (CVE-2026-34582) affects Botan prior to 3.11.1, where ApplicationData records could be processed before the TLS Finished message, allowing bypass of client authentication via certificates. Affected: Botan before 3.11.1. Mitigation: upgrade to Botan 3.11.1 or later (sec...

CVE-2026-34580 Botan has a certificate authentication bypass due to trust anchor confusion

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...

EUVD-2026-19947

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 Botan has a certificate authentication bypass due to trust anchor confusion

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...

Botan 信任管理问题漏洞

Botan is a C++ encryption library developed by Jack Lloyd as an individual project. Version 3.11.0 of Botan contains a vulnerability related to trust management. This vulnerability stems from a logical error in the CertificateStore::certificateknown function, which may lead to the acceptance of...

Botan 安全漏洞

Botan is a C++ encryption library developed by Jack Lloyd as an individual project. Versions of Botan prior to 3.11.1 contained security vulnerabilities. These vulnerabilities stemmed from the implementation of TLS 1.3, which processed application data records before receiving the Finished messag...

PT-2026-31028

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...

Linux Distros Unpatched Vulnerability : CVE-2026-32884

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. Prior to version 3.11.0, during processing of an X.509 certificate path using name constraints which restrict the set of...

Linux Distros Unpatched Vulnerability : CVE-2026-32883

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. From version 3.0.0 to before version 3.11.0, during X509 path validation, OCSP responses were checked for an appropriate...

Linux Distros Unpatched Vulnerability : CVE-2026-32877

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. From version 2.3.0 to before version 3.11.0, during SM2 decryption, the code that checked the authentication code value C3...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature in the OCSP response validation process. An attacker can bypass certificate revocation checks by providing a forged OCSP response, potentially enabling man-in-the-middle attacks...

ALPINE-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...

ALPINE-CVE-2026-32877

Botan is a C++ cryptography library. From version 2.3.0 to before version 3.11.0, during SM2 decryption, the code that checked the authentication code value C3 failed to check that the encoded value was of the expected length prior to comparison. An invalid ciphertext can cause a heap over-read o...

DEBIAN-CVE-2026-32883

Botan is a C++ cryptography library. From version 3.0.0 to before version 3.11.0, during X509 path validation, OCSP responses were checked for an appropriate status code, but critically omitted verifying the signature of the OCSP response itself. This issue has been patched in version 3.11.0...

CVE-2026-32877

Botan is a C++ cryptography library. From version 2.3.0 to before version 3.11.0, during SM2 decryption, the code that checked the authentication code value C3 failed to check that the encoded value was of the expected length prior to comparison. An invalid ciphertext can cause a heap over-read o...

CVE-2026-32883

Botan is a C++ cryptography library. From version 3.0.0 to before version 3.11.0, during X509 path validation, OCSP responses were checked for an appropriate status code, but critically omitted verifying the signature of the OCSP response itself. This issue has been patched in version 3.11.0...

UBUNTU-CVE-2026-32883

Botan is a C++ cryptography library. From version 3.0.0 to before version 3.11.0, during X509 path validation, OCSP responses were checked for an appropriate status code, but critically omitted verifying the signature of the OCSP response itself. This issue has been patched in version 3.11.0...

CVE-2026-32877

Botan is a C++ cryptography library. From version 2.3.0 to before version 3.11.0, during SM2 decryption, the code that checked the authentication code value C3 failed to check that the encoded value was of the expected length prior to comparison. An invalid ciphertext can cause a heap over-read o...

CVE-2026-32877 Botan: Heap Buffer Over-read in SM2 Decryption via Undersized C3 Hash Field

Botan is a C++ cryptography library. From version 2.3.0 to before version 3.11.0, during SM2 decryption, the code that checked the authentication code value C3 failed to check that the encoded value was of the expected length prior to comparison. An invalid ciphertext can cause a heap over-read o...

CVE-2026-32877

Botan is a C++ cryptography library. From version 2.3.0 to before version 3.11.0, during SM2 decryption, the code that checked the authentication code value C3 failed to check that the encoded value was of the expected length prior to comparison. An invalid ciphertext can cause a heap over-read o...