CVE•Published 2026-10-27•Modified 2026-10-27•0 articles on news•5 live references•NVD data
CVE-2026-117470
Vulnerability data via NVD (ingested)
CVSS v3.1
6.5
MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
EPSS percentile
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Weaknesses (CWE)
Description
Psono Server CE & EE versions 3.1.0 through 7.2.3 did not consume a stored WebAuthn challenge after assertion verification. An unauthenticated remote attacker who possessed the user's password and one captured valid WebAuthn assertion could replay that assertion with separate login tokens while the stored challenge remained unchanged, bypassing the WebAuthn second factor. The attack required capture of a valid assertion and did not itself disclose plaintext secrets.
Timeline
Published 2026-10-27
Modified 2026-10-27
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-2026-117470Hosts Shodan has explicitly fingerprinted as vulnerable.
More intel sources (5)
Shodan report
vuln:CVE-2026-117470Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-117470Censys host search filtered to this CVE id.
grep.app
CVE-2026-117470Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-117470GitHub code search for direct mentions.
Google dork
"CVE-2026-117470" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-117470 on GitHub.
We haven't classified any articles referencing CVE-2026-117470 yet. The external references above still apply.