CVE-2026-56081Public exploitNetwork attack vector

Account takeover via unverified-email 2FA enrollment

Published Jun 19, 2026 · Updated Jun 19, 2026

Authentication logic flaw in Capgo before 12.128.2 allows remote attackers to pre-register accounts under victims' email addresses. The signup flow grants dashboard access before email ownership verification and permits the unverified account to enroll 2FA and enforce organization policy. Possession of an unused victim email address is sufficient to control the resulting account and deny the legitimate owner access.

CVSS severity9.1
Critical
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication logic flaw in Capgo before 12.128.2 allows remote attackers to pre-register accounts under victims' email addresses. The signup flow grants dashboard access before email ownership verification and permits the unverified account to enroll 2FA and enforce organization policy. Possession of an unused victim email address is sufficient to control the resulting account and deny the legitimate owner access.

The record

CVE
CVE-2026-56081
Published
Jun 19, 2026
Updated
Jun 19, 2026
Vendor
Capgo
Product
Capgo
Classifications
CWE-640, T1531, T1136.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 19, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <12.128.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Capgo · Capgoversion=0 <12.128.2

Published CVSS scores

9.1VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
9.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-640Weak Password Recovery Mechanism for Forgotten Password
T1531Account Access Removal
T1136.003Cloud Account

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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