What is CVE-2026-27344?

CVE-2026-27344 is a medium-severity vulnerability in Inseriswiss Inseri Core, classified under Missing Authorization. CVSS score: 5.9/10. Published 2026-03-05.

How severe is CVE-2026-27344?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Is CVE-2026-27344 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Inseriswiss Inseri Core

CVE-2026-27344

Missing Authorization vulnerability in inseriswiss inseri core inseri-core allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects inseri core: from n/a through <= 1.0.5.

Vulnerability class: Broken Access Control

EPSS: 0.002 (15.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Inseriswiss Inseri Core — versions 0

Weakness classification (CWE)

CWE-862 — Missing Authorization

Public proof-of-concept exploits

AC8999/CVE-2026-27344

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2026-27344?: CVE-2026-27344 is a medium-severity vulnerability in Inseriswiss Inseri Core, classified under Missing Authorization. CVSS score: 5.9/10. Published 2026-03-05.
How severe is CVE-2026-27344?: Medium severity. CVSS v3 base score is 5.9 out of 10.
Is CVE-2026-27344 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.