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Back to active CVEs
Critical · CVSS 9.1CVE-2026-53997

Netherman Portal del Hermano Account Takeover via Password Reset OracleCVE-2026-53997

Answer in brief

CVE-2026-53997 records a Critical severity (CVSS 9.1) vulnerability in Netherman Portal del Hermano Account Takeover via Password Reset Oracle. The current sources do not mark it as known exploited. The current feed maps NetHerman/Portal del Hermano (portaldelhermano.es) (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 12, 2026Updated Oct 12, 2026Source checked Oct 12, 2026First seen by HOL Oct 12, 2026Material review Oct 12, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.1
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 9.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps NetHerman/Portal del Hermano (portaldelhermano.es) (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
NetHerman/Portal del Hermano (portaldelhermano.es)generic>=0 <2026-10-062026-10-06

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for NetHerman/Portal del Hermano (portaldelhermano.es).
  2. 2Review the reported fix. Update NetHerman/Portal del Hermano (portaldelhermano.es) to 2026-10-06 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 12, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 12, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 12, 2026

Sources and claim methodology

  • Source referencebeafn28.es
  • Source referencenetherman.app
  • Source referencevulncheck.com
Upstream source description

Netherman Portal del Hermano (portaldelhermano.es) before 2026-10-06 contains a broken authentication vulnerability in its password-recovery flow at the POST /password/create-access and POST /password/email endpoints, allowing unauthenticated attackers to take over any member account across all tenants by exploiting the lack of rate limiting and distinct error messages that act as oracles for each of the four identity-verification factors (DNI, date of birth, phone number, last four IBAN digits). Attackers can confirm the DNI via the oracle, brute-force the date of birth and IBAN digits, obtain the phone number through open-source intelligence, then submit an attacker-controlled email field so the password reset link is delivered to them, enabling full account takeover including profile data, full IBAN, and fiscal documents.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Super Productivity: SuperSync E2EE setup uploads and stores all user operations in plaintext before password is setSame generic ecosystem
  • Nango: Production flow RBAC bypass on private flow-read routesSame generic ecosystem
  • QGIS: Stored XSS in WFS3 getFeatures HTML page via unescaped feature attribute valuesSame generic ecosystem
  • IBM Maximo Application Suite Information DisclosureSame generic ecosystem
  • Netcore NR268 DHCP dhcp_dynamicip_show.cgi eval cross site scriptingSame generic ecosystem
  • Netcore NR268 DHCP Hostname filter_hosts_dump.cgi eval cross site scriptingSame generic ecosystem

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-640, CWE-307
Source
CVE List V5
Source checked
Oct 12, 2026
References
3 linked sources
Open source record