CVE•Published 2026-06-24•Modified 2026-09-17•1 article on news•6 live references•NVD data
CVE-2026-56223
Vulnerability data via NVD (ingested)
CVSS v3.1
8.7
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
EPSS percentile
34
Exploit Prediction Scoring System · top 66% of all CVEs
Weaknesses (CWE)
Description
Capgo before 12.128.2 contains a cross-domain SSO account takeover vulnerability in the provision-user endpoint that allows attackers to merge arbitrary victim accounts based on email match without validating SSO provider domain authorization. An attacker with enterprise org admin access and a malicious IdP can forge SAML assertions containing victim email addresses to trigger account merge and gain full access to victim accounts, organizations, and data.
Timeline
Published 2026-06-24
Modified 2026-09-17
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).
More intel sources (5)
Shodan report
vuln:CVE-2026-56223Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-56223Censys host search filtered to this CVE id.
grep.app
CVE-2026-56223Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-56223GitHub code search for direct mentions.
Google dork
"CVE-2026-56223" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-56223 on GitHub.