CVE-2026-88891

OpenPanel through 2.3.0 Read-Only Access Level Enforcement Bypass via Mutations

HIGH
8.3
CVSS Score
Published: September 10, 2026 at 01:05 PM UTC
Updated: October 27, 2026 at 10:14 AM UTC
1 product affected across 1 vendorOpenpanel

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Severity
HIGH8.3
Exploit prediction
EPSS 0.4%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-269

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