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CVE-2026-33996

Опубликовано: 27 мар. 2026
Источник: ubuntu
Приоритет: medium
EPSS Низкий
CVSS3: 5.5

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.

РелизСтатусПримечание
devel

needs-triage

esm-apps/bionic

needs-triage

esm-apps/focal

needs-triage

esm-apps/jammy

needs-triage

esm-apps/noble

needs-triage

esm-apps/resolute

needs-triage

jammy

needs-triage

noble

needs-triage

questing

ignored

end of life, was needs-triage
resolute

needs-triage

Показывать по

РелизСтатусПримечание
devel

needs-triage

esm-apps/resolute

needs-triage

jammy

DNE

noble

DNE

questing

DNE

resolute

needs-triage

upstream

released

3.3.2-1

Показывать по

EPSS

Процентиль: 5%
0.0015
Низкий

5.5 Medium

CVSS3

Связанные уязвимости

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
nvd
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

Уязвимость CVE-2026-33996