CVE-2026-36721
CRITICALCVSS 9.8/10EPSS 0.27%
Last modified
CVE-2026-36721 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A lack of cryptographic signature verification in the validateAccessToken function of bookcars v8.3 allows attackers to bypass authentication via a forged JWT token.. EPSS estimates a 0.27% chance of exploitation in the next 30 days.
Description
A lack of cryptographic signature verification in the validateAccessToken function of bookcars v8.3 allows attackers to bypass authentication via a forged JWT token.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-36721?
A lack of cryptographic signature verification in the validateAccessToken function of bookcars v8.3 allows attackers to bypass authentication via a forged JWT token.
How severe is CVE-2026-36721?
CVE-2026-36721 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.
How do I fix CVE-2026-36721?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2026-36721?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST