GHSA-vmw2-qwm8-x84c: Marten (CVE-2026-45288)

Package	Ecosystem	Affected	Fixed in
Marten	NuGet	<8.37.0	8.37.0

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Marten versions before 8.37.0 are vulnerable to SQL injection through the regConfig parameter of its full-text search APIs, because the value is inserted into generated SQL without parameterization or validation. An attacker who can supply regConfig input, for example through a request parameter that the application forwards to it, can run arbitrary PostgreSQL statements, with impact depending on the database role used. Upgrade to Marten 8.37.0 or later. Until then, hard-code regConfig to a constant or validate it against an allowlist before passing it to Marten.

Written 9 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
9.8	Critical	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CNA (GitHub_M)

CISA KEV Not listed.
EPSS 0.0037, the 31st percentile, on 9 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

31 Oct 2026, 15:22 UTC First seen by agentprime
31 Oct 2026, 15:22 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.