What is GHSA-hjjc-9hhm-h336?

GHSA-hjjc-9hhm-h336 is a security advisory published by GitHub Security Advisories with Critical severity. A lack of cryptographic signature verification in the validateAccessToken function of bookcars v8...

Which CVE IDs does GHSA-hjjc-9hhm-h336 cover?

GHSA-hjjc-9hhm-h336 covers the following CVE IDs: CVE-2026-36721. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-hjjc-9hhm-h336?

GHSA-hjjc-9hhm-h336 has a CVSS v3 base score of 9.8, published by GitHub Security Advisories.

GHSA-hjjc-9hhm-h336CriticalCVSS 9.8

A lack of cryptographic signature verification in the validateAccessToken function of bookcars v8...

Vendor

GitHub Security Advisories

Published

June 9, 2026

Last Modified

June 10, 2026

🔗 CVE IDs covered (1)

CVE-2026-36721 →

📋 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.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-36721
https://github.com/CC-T-454455/Vulnerabilities/tree/master/bookcars/vulnerability-2
https://github.com/advisories/GHSA-hjjc-9hhm-h336