CVE•Published 2026-06-02•Modified 2026-07-22•1 article on news•5 live references•NVD data
CVE-2026-47201Goauthentik · Authentik
Vulnerability data via NVD (ingested)
CVSS v3.1
8.5
HIGH
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS percentile
8
Exploit Prediction Scoring System · top 92% of all CVEs
Weaknesses (CWE)
Description
authentik is an open-source identity provider. Prior to versions 2025.12.5, 2026.2.3, and 2026.5.1, authentik's SAML Source ACS endpoint is vulnerable to XML Signature Wrapping when validating upstream SAML responses. An attacker with any account at the upstream IdP can reuse a valid signed assertion to authenticate as another federated user. This issue has been patched in versions 2025.12.5, 2026.2.3, and 2026.5.1.
Timeline
Published 2026-06-02
Modified 2026-07-22
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 tag2,301 hosts
vuln:CVE-2026-47201Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Goauthentik Authentik"All exposed Goauthentik Authentik instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Authentik"HTTP body or banner mentions "Authentik" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-47201Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-47201Censys host search filtered to this CVE id.
grep.app
CVE-2026-47201Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-47201GitHub code search for direct mentions.
Google dork
"CVE-2026-47201" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-47201 on GitHub.