HOMEVULNERABILITIESCVE-2026-56215
HIGH

CVE-2026-56215

CWE-639Published: June 20, 2026· Updated: Jun 24, 2026

8.3
CVSS v3.1

Official Description

Capgo before 12.128.12 allows authenticated users to modify their mutable public.users.email to arbitrary addresses, which the SSO provisioning endpoint trusts as an account-merge key. Attackers can pre-position their account with a victim's corporate SSO email, causing the provision-user endpoint to merge the victim's SSO identity into the attacker-controlled account.

NVD Source

Technical Analysis

CVE-2026-56215 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 8.3.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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All References (3)

Quick Facts

CVE IDCVE-2026-56215
CVSS Score8.3 / 10
SeverityHIGH
WeaknessCWE-639
CISA KEVNo
PublishedJun 20, 2026

Related CVEs (CWE-639)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2026-56215 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.