Incorrect Privilege AssignmentWeakness · CWE-266

CVE-2026-23550

CRITICAL · 9.8 CVSS v3.1 Published 2026-01-14
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Incorrect Privilege Assignment vulnerability in Modular DS Modular DS modular-connector allows Privilege Escalation.This issue affects Modular DS: from n/a through <= 2.5.1.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

A privilege escalation vulnerability exists in the Modular DS modular-connector component due to incorrect privilege assignment. An authenticated or potentially unauthenticated attacker can exploit this flaw to gain elevated access beyond their intended authorization level. The issue affects all versions through 2.5.1, with the fix available in version 2.5.2.

MitigationUpgrade Modular DS modular-connector to version 2.5.2 or later. If immediate patching is not possible, restrict network access to the connector component and review access control configurations.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify modular-connector installation
    Locate the Modular DS modular-connector component in your environment - check for installed packages, services, or applications named 'modular-connector' or 'Modular DS'. Use package managers or system inventory tools to find where this component is deployed.
    Affected if The modular-connector component is present in the environment and has not been upgraded beyond version 2.5.1.
  2. Determine installed version
    Query the installed version of the modular-connector component using the package manager, service information, or version file. Common methods: 'npm list modular-connector', 'pip show modular-connector', or check the application manifest/binary version information.
    Affected if The installed version is 2.5.1 or earlier (all versions through 2.5.1 are affected).
  3. Review user role configuration files
    Locate and inspect user role configuration files or databases that define user privileges within the modular-connector. Look for files that assign roles, permissions, or access levels to users.
    Affected if Incorrect privilege assignment configurations exist that allow unprivileged users to be assigned elevated roles.
  4. Audit user accounts and assigned roles
    Examine user accounts in the system and verify their assigned roles. Check which users have administrative, elevated, or privileged access versus standard user accounts.
    Affected if Unprivileged or standard users have been granted elevated access privileges they should not possess.
  5. Test for unauthorized access to elevated functions
    If possible, attempt to access higher-privilege functions using a known unprivileged account, or review access logs for successful access to privileged operations by non-admin users.
    Affected if Unprivileged users can successfully access or execute functions that should require elevated privileges.

The environment is affected if the Modular DS modular-connector version is 2.5.1 or earlier AND unprivileged users have been granted elevated access through incorrect privilege assignment.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade Modular DS modular-connector to version 2.5.2 or later. If immediate patching is not possible, restrict network access to the connector component and review access control configurations.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing8.0 h
  • Review / QA4.0 h
18.0 hours of engineering $3,040
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-23550 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
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  • Version or environment caveats, and links to real fixes
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