VulnerabilityAwaiting Analysis

CVE-2026-18801

OpenMeter contains a stored, or second-order, SQL injection vulnerability in the handling of customer usage-attribution values.

CRITICAL 9.3EPSS 0.23%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.23%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 4.0: 9.3 CRITICALCVSS: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/M
EPSS: 0.23% probability · 14th percentile
CISA KEV: Not listed
Weakness: CWE-20
Source: 02762ae7-200e-4b20-9b2b-a77d5b8fc4cb

References

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.