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CVE-2026-13164

Published Jun 24, 2026 CWE-306 EPSS 0.71% (51th pctl)

Overview

CVE-2026-13164 is a known-severity vulnerability. It was published on June 24, 2026.

Technical Description

Missing Authentication for Critical Function (CWE-306) in the RegisterView (apps/accounts/views.py), exposed at POST /api/auth/register/, in MailerUp <1.0.1 allows a remote, unauthenticated attacker to self-register a working account on instances where registration is intended to be restricted, because the endpoint applies the AllowAny permission with no email verification, CAPTCHA, or administrator approval. Any account created this way can read all email stored by the instance, resulting in full disclosure of stored messages to an arbitrary unauthenticated attacker

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHub github.com/Maalfer/mailerup/commit/99eb6d4586134bf3f4422093fbf47d6794ef0ee5 Ref secur0.com/en/cna/cve-list/cve-2026-13164-unauthenticated-self-registration-in-mailerup-allows-access-to-stored-email-data

Frequently Asked Questions

What is CVE-2026-13164?

CVE-2026-13164 is a known-severity vulnerability. It was published on June 24, 2026.

How severe is CVE-2026-13164?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2026-13164?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-13164?

CyberStrike's AI-powered security agents can automatically detect CVE-2026-13164 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

How CyberStrike Helps

Autonomous Discovery

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HackBrowser

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