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CVE-2026-33996

Опубликовано: 27 мар. 2026
Источник: nvd
CVSS3: 5.5
EPSS Низкий

Описание

LibJWT is a C JSON Web Token Library. Starting in version 3.0.0 and prior to version 3.3.0, the JWK parsing for RSA-PSS did not protect against a NULL value when expecting to parse JSON string values. A specially crafted JWK file could exploit this behavior by using integers in places where the code expected a string. This was fixed in v3.3.0. A workaround is available. Users importing keys through a JWK file should not do so from untrusted sources. Use the jwk2key tool to check for validity of a JWK file. Likewise, if possible, do not use JWK files with RSA-PSS keys.

Уязвимые конфигурации

Конфигурация 1
cpe:2.3:a:libjwt:libjwt:*:*:*:*:*:*:*:*
Версия от 3.0.0 (включая) до 3.3.0 (исключая)

EPSS

Процентиль: 5%
0.0015
Низкий

5.5 Medium

CVSS3

Дефекты

CWE-476

Связанные уязвимости

CVSS3: 5.5
ubuntu
5 месяцев назад

LibJWT is a C JSON Web Token Library. Starting in version 3.0.0 and prior to version 3.3.0, the JWK parsing for RSA-PSS did not protect against a NULL value when expecting to parse JSON string values. A specially crafted JWK file could exploit this behavior by using integers in places where the code expected a string. This was fixed in v3.3.0. A workaround is available. Users importing keys through a JWK file should not do so from untrusted sources. Use the `jwk2key` tool to check for validity of a JWK file. Likewise, if possible, do not use JWK files with RSA-PSS keys.

CVSS3: 5.9
redhat
5 месяцев назад

LibJWT is a C JSON Web Token Library. Starting in version 3.0.0 and prior to version 3.3.0, the JWK parsing for RSA-PSS did not protect against a NULL value when expecting to parse JSON string values. A specially crafted JWK file could exploit this behavior by using integers in places where the code expected a string. This was fixed in v3.3.0. A workaround is available. Users importing keys through a JWK file should not do so from untrusted sources. Use the `jwk2key` tool to check for validity of a JWK file. Likewise, if possible, do not use JWK files with RSA-PSS keys.

CVSS3: 5.5
debian
5 месяцев назад

LibJWT is a C JSON Web Token Library. Starting in version 3.0.0 and pr ...

EPSS

Процентиль: 5%
0.0015
Низкий

5.5 Medium

CVSS3

Дефекты

CWE-476