What is CVE-2026-45288?

CVE-2026-45288 is a critical-severity vulnerability in Jasperfx Marten, classified under SQL Injection. CVSS score: 9.8/10. Published 2026-05-28.

How severe is CVE-2026-45288?

Critical severity. CVSS v3 base score is 9.8 out of 10.

SQL Injection in Jasperfx Marten

CVE-2026-45288

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.

Vulnerability class: SQL Injection

EPSS: 0.004 (31.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Jasperfx Marten — versions < 8.36.1

Weakness classification (CWE)

CWE-89 — SQL Injection

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-45288?: CVE-2026-45288 is a critical-severity vulnerability in Jasperfx Marten, classified under SQL Injection. CVSS score: 9.8/10. Published 2026-05-28.
How severe is CVE-2026-45288?: Critical severity. CVSS v3 base score is 9.8 out of 10.