How severe is CVE-2026-11838?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Yordam Informatics Technology Consulting, Training, And Electronic Systems Industry Trade Inc. Library Reservation System

CVE-2026-11838

Missing authentication for critical function vulnerability in Yordam Informatics Technology Consulting, Training, and Electronic Systems Industry and Trade Inc. Library Reservation System allows Input Data Manipulation. This issue affects Library Reservation System: before v22.2.

Vulnerability class: Broken Authentication

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Yordam Informatics Technology Consulting, Training, And Electronic Systems Industry Trade Inc. Library Reservation System

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

iletisim@usom.gov.tr (government-resource)

Frequently asked questions

What is CVE-2026-11838?: CVE-2026-11838 is a medium-severity vulnerability in Yordam Informatics Technology Consulting, Training, And Electronic Systems Industry Trade Inc. Library Reservation System, classified under Missing Authentication for Critical Function. CVSS score: 4.3/10. Published 2026-09-09.
How severe is CVE-2026-11838?: Medium severity. CVSS v3 base score is 4.3 out of 10.