OpenPanel Read-Only Access Level Enforcement Bypass via Mutations (CVE-2026-88891) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-88891

OpenPanel Read-Only Access Level Enforcement Bypass via Mutations

Answer in brief

CVE-2026-88891 records a Unknown severity vulnerability in OpenPanel Read-Only Access Level Enforcement Bypass via Mutations. The current sources do not mark it as known exploited. The current feed maps Openpanel-dev/openpanel (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 Sep 10, 2026Updated Sep 10, 2026Source checked Sep 10, 2026First seen by HOL Sep 10, 2026Material review Sep 10, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. 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 Openpanel-dev/openpanel (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Openpanel-dev/openpanelgeneric	0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Openpanel-dev/openpanel.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 10, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 10, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 10, 2026

Sources and claim methodology

Upstream source description

OpenPanel fails to enforce read-only project access level on 26 of 29 mutating procedures, allowing read-level members to modify, delete, and publish project data. Attackers with explicit read-only access can delete reports and dashboards, schedule entire projects for deletion, publish private analytics to public share links, and modify alerting rules by exploiting missing access level validation in mutation resolvers.

Quoted source text, attributed separately from HOL analysis.