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CVE-2026-34580

Опубликовано: 07 апр. 2026
Источник: nvd
CVSS3: 7.5
CVSS3: 9.1
EPSS Низкий

Описание

Botan is a C++ cryptography library. In 3.11.0, the function Certificate_Store::certificate_known 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 cert it was passed were actually the same certificate. In 3.11.0 an extension of path validation logic was made which assumed that certificate_known only returned true if the certificates were in fact identical. The impact is that if an end entity certificate is presented, and its DN (and subject key identifier, if set) match that of any trusted root, the end entity certificate is accepted immediately as if it itself were a trusted root. , This vulnerability is fixed in 3.11.1.

Уязвимые конфигурации

Конфигурация 1
cpe:2.3:a:botan_project:botan:3.11.0:*:*:*:*:*:*:*

EPSS

Процентиль: 16%
0.00249
Низкий

7.5 High

CVSS3

9.1 Critical

CVSS3

Дефекты

CWE-295
CWE-295

Связанные уязвимости

CVSS3: 7.5
ubuntu
4 месяца назад

Botan is a C++ cryptography library. In 3.11.0, the function Certificate_Store::certificate_known 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 cert it was passed were actually the same certificate. In 3.11.0 an extension of path validation logic was made which assumed that certificate_known only returned true if the certificates were in fact identical. The impact is that if an end entity certificate is presented, and its DN (and subject key identifier, if set) match that of any trusted root, the end entity certificate is accepted immediately as if it itself were a trusted root. , This vulnerability is fixed in 3.11.1.

CVSS3: 9.1
redhat
4 месяца назад

Botan is a C++ cryptography library. In 3.11.0, the function Certificate_Store::certificate_known 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 cert it was passed were actually the same certificate. In 3.11.0 an extension of path validation logic was made which assumed that certificate_known only returned true if the certificates were in fact identical. The impact is that if an end entity certificate is presented, and its DN (and subject key identifier, if set) match that of any trusted root, the end entity certificate is accepted immediately as if it itself were a trusted root. , This vulnerability is fixed in 3.11.1.

CVSS3: 7.5
debian
4 месяца назад

Botan is a C++ cryptography library. In 3.11.0, the function Certifica ...

EPSS

Процентиль: 16%
0.00249
Низкий

7.5 High

CVSS3

9.1 Critical

CVSS3

Дефекты

CWE-295
CWE-295