Back to overview

CVE-2026-36721

CRITICAL Exploitation: PoC
9.8
CVSS 3.1
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.

Metadata

CVE ID
CVE-2026-36721
State
PUBLISHED
Assigner
mitre
Reserved
2026-04-06 00:00 UTC
Published
2026-06-09 00:00 UTC
Last updated
2026-06-10 13:55 UTC
Primary CWE
CWE-347
CWE-347 Improper Verification of Cryptographic Signature
Vendor / Product
n/a / n/a
Sources
cve.org  ·  NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC — CISA Coordinator
Exploitation
PoC
Automatable
yes
Tech. Impact
total
Affected products (1)
VendorProductPlatformVersions
n/a n/a — n/a
Weakness (CWE)
CWESourceDescription
— cna n/a
CWE-347 adp CWE-347 Improper Verification of Cryptographic Signature
CVSS scores (1)
ScoreSeverityVersionSourceVector
9.8 CRITICAL 3.1 adp CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References (1)
Back to overview