CVE-2026-33996
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.
Vendor
Product
CWE
Yayın Tarihi
2026-03-27 23:17:14
Güncelleme
2026-03-31 20:39:06
Source Identifier
security-advisories@github.com
KEV Date Added
-