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  4. CVE 2026 19506 rdk b webui race condition vulnerability
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Back to active CVEs
High · CVSS 8.1CVE-2026-19506

RDK-B WebUI race condition vulnerability

Answer in brief

CVE-2026-19506 records a High severity (CVSS 8.1) vulnerability in RDK-B WebUI race condition vulnerability. The current sources do not mark it as known exploited. The current feed maps RDK/RDK-B WebUI (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 Aug 19, 2026Updated Sep 3, 2026Source checked Oct 3, 2026First seen by HOL Aug 19, 2026Material review Sep 3, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.1
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 8.1. 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 RDK/RDK-B WebUI (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
RDK/RDK-B WebUIgenericrdkb-2025q4-kirkstoneNot reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for RDK/RDK-B WebUI.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Aug 19, 2026

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

  2. Source modified

    Sep 3, 2026

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

  3. First seen by HOL

    Aug 19, 2026

Sources and claim methodology

  • Source referencedeveloper.rdkcentral.com
  • Source referencewhitehats.pwr.edu.pl
Upstream source description

Race condition in `check.jst` in RDK-B WebUI `rdkb-2025q4-kirkstone.04.10.26` allows a remote attacker to gain unauthorized access via concurrent authentication requests that exploit shared authentication state.

Quoted source text, attributed separately from HOL analysis.

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  • WordPress Unlimited Elements For Elementor (Free Widgets, Addons, Templates) plugin <= 2.0.20 - Cross Site Scripting (XSS) vulnerabilitySame generic ecosystem
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Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-362
Source
CVE List V5
Source checked
Oct 3, 2026
References
2 linked sources
Open source record