CVE•Published 2026-10-12•Modified 2026-10-13•1 article on news•4 live references•NVD data
CVE-2026-109373
Vulnerability data via NVD (ingested)
CVSS v3.1
8.1
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
—
Weaknesses (CWE)
Description
ZITADEL 3.0.0 before 4.19.2 contains an authentication bypass vulnerability in the Login V2 UI that allows unauthenticated attackers to obtain other users' session tokens by forging unsigned session cookies. Attackers can guess time-ordered session IDs around a victim's sign-in and supply them with empty tokens to receive rotated tokens, taking over accounts including MFA-completed administrator sessions.
Timeline
Published 2026-10-12
Modified 2026-10-13
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).
Shodan · vuln tag0 hosts
vuln:CVE-2026-109373Hosts Shodan has explicitly fingerprinted as vulnerable.
More intel sources (5)
Shodan report
vuln:CVE-2026-109373Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-109373Censys host search filtered to this CVE id.
grep.app
CVE-2026-109373Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-109373GitHub code search for direct mentions.
Google dork
"CVE-2026-109373" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-109373 on GitHub.