CVE-2026-18801 — Stored Clickhouse SQL Injection Through Customer Usage Attribution

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
openmeter / openmeter	affected v1.0.0-beta.218 through v1.0.0-beta.231

CWE

CWE-20

References

https://github.com/openmeterio/openmeter/security/advisories/GHSA-m2fw-9wxq-jgf5

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.