Libjwt is a compact JWT authentication library whose vulnerability exposure centers on the single libjwt product and the parsing and validation logic inherent to token processing. The recurring weakness classes, null-pointer dereferences and observable discrepancies, reflect memory-safety and state-validation challenges typical of cryptographic parsing libraries. Live severity, exploitation, and exposure counts are shown alongside this summary.
The number and severity of CVEs published that impact products developed by Libjwt over time
Signals from CVEs in this vendor scope (2 CVEs).
2 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2024-25189CRITICAL 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. | Feb 8, 2024 | 9.8 | 26 | NO | NO |
CVE-2026-33996MEDIUM 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 | Mar 27, 2026 | 5.5 | 20 | NO | NO |
Signals from CVEs in this vendor scope (2 CVEs).
An overview of all social media posts that mention a CVE ID that affects a product developed by Libjwt.
Media articles that mention a CVE ID that affects a product developed by Libjwt — matched by CVE ID, not by vendor name.