CVE•Published 2026-06-09•Modified 2026-06-10•1 article on news•5 live references•NVD data
CVE-2026-36721
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
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Weaknesses (CWE)
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.
Timeline
Published 2026-06-09
Modified 2026-06-10
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common). Live host counts are a Premium feature.
More intel sources (5)
Shodan report
vuln:CVE-2026-36721Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-36721Censys host search filtered to this CVE id.
grep.app
CVE-2026-36721Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-36721GitHub code search for direct mentions.
Google dork
"CVE-2026-36721" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-36721 on GitHub.