---
title: "CVE-2026-53997: Netherman Portal del Hermano - Authentication Bypass"
description: "Netherman Portal del Hermano before 2026-10-06 contains a broken authentication vulnerability caused by lack of rate limiting and distinct error messages in password-recovery endpoints, letting unauthenticated attackers take over member accounts by exploiting identity-verification oracles."
url: https://panop.io/threat-heartbeat/CVE-2026-53997/
---

# CVE-2026-53997 Netherman Portal del Hermano - Authentication Bypass

Netherman Portal del Hermano before 2026-10-06 contains a broken authentication vulnerability caused by lack of rate limiting and distinct error messages in password-recovery endpoints, letting unauthenticated attackers take over member accounts by exploiting identity-verification oracles.

CVSS base score 7.4 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.40% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-53997)

## Details

Type

Authentication Bypass

Impact

Broken Access Control, Information Disclosure

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Published

12 October 2026

Updated

15 October 2026

Weakness

[CWE-307](https://cwe.mitre.org/data/definitions/307.html)

## Vendor fix

Update to version 2026-10-06 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-53997](https://nvd.nist.gov/vuln/detail/CVE-2026-53997)
- [https://beafn28.es/articulos/cve-2026-53997](https://beafn28.es/articulos/cve-2026-53997)
- [https://netherman.app/](https://netherman.app/)
- [https://www.vulncheck.com/advisories/netherman-portal-del-hermano-account-takeover-via-password-reset-oracle](https://www.vulncheck.com/advisories/netherman-portal-del-hermano-account-takeover-via-password-reset-oracle)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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