Stored Clickhouse SQL Injection Through Customer Usage Attribution

Summary

CVECVE-2026-18801
StatePUBLISHED
AssignerKong
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-04 16:16:22 UTC
Updated2026-08-04 19:16:44 UTC
DescriptionOpenMeter 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.

Risk And Classification

Primary CVSS: v4.0 9.3 CRITICAL from 02762ae7-200e-4b20-9b2b-a77d5b8fc4cb

CVSS:4.0/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

Problem Types: CWE-20 | CWE-20 CWE-20 Improper input validation


VersionSourceTypeScoreSeverityVector
4.002762ae7-200e-4b20-9b2b-a77d5b8fc4cbSecondary9.3CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:H/SC:H/SI:L/SA:H/E:X/C...
4.0CNACVSS9.3CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:H/SC:H/SI:L/SA:H

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
Low
Availability
High
Sub Conf.
High
Sub Integrity
Low
Sub Availability
High

CVSS:4.0/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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Openmeter Openmeter affected v1.0.0-beta.218 v1.0.0-beta.231 git Linux

References

ReferenceSourceLinkTags
github.com/openmeterio/openmeter/security/advisories/GHSA-m2fw-9wxq-jgf5 02762ae7-200e-4b20-9b2b-a77d5b8fc4cb github.com
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