CVE-2026-18801
Stored Clickhouse SQL Injection Through Customer Usage Attribution
Description
OpenMeter contains a stored, or second-order, SQL injection vulnerability in the handling of customer usage-attribution values. An attacker who can create or update a customer can store a malicious value in the usageAttribution.key or usageAttribution.subjectKeys fields. When that customer is subsequently used in a meter or event query, OpenMeter inserts the stored value into a ClickHouse WITH map(...) expression using string concatenation. OpenMeter versions from v1.0.0-beta.218 through v1.0.0-beta.231 are affected.
INFO
Published Date :
Aug. 4, 2026, 4:16 p.m.
Last Modified :
Aug. 4, 2026, 7:16 p.m.
Remotely Exploit :
Yes !
Source :
02762ae7-200e-4b20-9b2b-a77d5b8fc4cb
Affected Products
The following products are affected by CVE-2026-18801
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 4.0 | CRITICAL | 02762ae7-200e-4b20-9b2b-a77d5b8fc4cb | ||||
| CVSS 4.0 | CRITICAL | 02762ae7-200e-4b20-9b2b-a77d5b8fc4cb |
Solution
- Update OpenMeter to a non-vulnerable version.
- Validate input data for SQL injection attempts.
- Sanitize user-supplied attribution keys and values.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-18801.
| URL | Resource |
|---|---|
| https://github.com/openmeterio/openmeter/security/advisories/GHSA-m2fw-9wxq-jgf5 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-18801 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-18801
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-18801 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-18801 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 04, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-18801', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-04T17:45:41.382410Z'} -
New CVE Received by 02762ae7-200e-4b20-9b2b-a77d5b8fc4cb
Aug. 04, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://github.com/openmeterio/openmeter/', 'vendor': 'openmeter', 'product': 'openmeter', 'versions': [{'status': 'affected', 'version': 'v1.0.0-beta.218', 'versionType': 'git', 'lessThanOrEqual': 'v1.0.0-beta.231'}], 'platforms': ['Linux'], 'defaultStatus': 'unaffected'}] Added Description OpenMeter contains a stored, or second-order, SQL injection vulnerability in the handling of customer usage-attribution values. An attacker who can create or update a customer can store a malicious value in the usageAttribution.key or usageAttribution.subjectKeys fields. When that customer is subsequently used in a meter or event query, OpenMeter inserts the stored value into a ClickHouse WITH map(...) expression using string concatenation. OpenMeter versions from v1.0.0-beta.218 through v1.0.0-beta.231 are affected. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:H/SC:H/SI:L/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-20 Added Reference https://github.com/openmeterio/openmeter/security/advisories/GHSA-m2fw-9wxq-jgf5