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Libjwt

libjwt

Vendor: Libjwt • 2 CVEs

CVEs (2)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Libjwt
1Libjwt
Jun 17, 2026
Mar 27, 2026
5.8 MEDIUM· v4
5.5 MEDIUM· v3
N/A· v2
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...Show more
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.Show less
2Debian
Libjwt
2Debian Linux
Libjwt
Jun 17, 2026
Feb 8, 2024
N/A· v4
9.8 CRITICAL· v3
N/A· v2
libjwt 1.15.3 uses strcmp (which is not constant time) to verify authentication, which makes it easier to bypass authentication via a timing side channel.