CVE-2026-55550Public exploitNetwork attack vector

Authenticated catalog tampering via unchecked MCP product tools

Published Jul 20, 2026 · Updated Jul 20, 2026

Missing authorization in NextCRM 0.12.1 allows remote authenticated users to modify the shared CRM product catalog through MCP tools. The crm_create_product, crm_update_product, and crm_delete_product handlers perform database writes without the requireRole check used by normal server actions. A low-privileged user needs a self-generated MCP Bearer token and can create, alter, archive, or soft-delete organization-wide product records.

CVSS severity7.1
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in NextCRM 0.12.1 allows remote authenticated users to modify the shared CRM product catalog through MCP tools. The crm_create_product, crm_update_product, and crm_delete_product handlers perform database writes without the requireRole check used by normal server actions. A low-privileged user needs a self-generated MCP Bearer token and can create, alter, archive, or soft-delete organization-wide product records.

The record

CVE
CVE-2026-55550
Published
Jul 20, 2026
Updated
Jul 20, 2026
Vendor
NextCRM
Product
NextCRM
Classifications
CWE-862, CWE-269, CWE-284, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion== 0.12.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

NextCRM · NextCRMversion== 0.12.1

Published CVSS scores

7.1GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
CWE-269Improper Privilege Management
CWE-284Improper Access Control
T1565.001Stored Data Manipulation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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