CVE-2026-36721

CRITICAL

bookcars 8.3 - Authentication Bypass via Forged JWT Token

Title source: llm
STIX 2.1

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 (1)

Core 1

Scores

CVSS v3 9.8
EPSS 0.0027
EPSS Percentile 18.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact total

Details

CWE
CWE-347
Status published
Published Jun 09, 2026
Tracked Since Jun 10, 2026