CVE-2026-18801

CRITICAL

openmeter - Stored Clickhouse SQL Injection Through Customer Usage Attribution

Title source: rule

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.

References (1)

Core 1

Core References

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

Scores

CVSS v4 9.3

EPSS 0.0023

EPSS Percentile 13.6%

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

Details

CWE

CWE-20

Status published

Products (1)

openmeter/openmeter v1.0.0-beta.218 - v1.0.0-beta.231

Published Aug 04, 2026

Tracked Since Aug 04, 2026