CVE-2026-79576Public exploitNetwork attack vector

Account takeover via unchecked QR-code login

Published Sep 8, 2026 · Updated Sep 8, 2026

Improper authentication in Digital-Infrastructure 9.6.7 allows remote attackers to impersonate any user through the SSO login endpoint. The qrCode branch of Y9AuthenticationHandler.authenticate selects a submitted personId and issues CAS credentials without validating a password or QR-code state. Remote attackers need a known personId and network access to the public RSA-key and login endpoints; successful use grants the impersonated account's privileges, including Administrator access.

CVSS severity9.8
Critical
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in Digital-Infrastructure 9.6.7 allows remote attackers to impersonate any user through the SSO login endpoint. The qrCode branch of Y9AuthenticationHandler.authenticate selects a submitted personId and issues CAS credentials without validating a password or QR-code state. Remote attackers need a known personId and network access to the public RSA-key and login endpoints; successful use grants the impersonated account's privileges, including Administrator access.

The record

CVE
CVE-2026-79576
Published
Sep 8, 2026
Updated
Sep 8, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-287Improper Authentication
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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