CVE-2026-36721
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductBookcars
PublishedJun 9, 2026
First seenJun 9, 2026
Weakness typeCWE-347CWE-347
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| bookcars | 8.3 | — |
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