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Vulnerability · Published Sep 9, 2026 · Assigned by TR-CERT

CVE-2026-11838Improper Authorization in Yordam Informatics' Library Reservation System

Medium 4.3

In plain English

A medium-severity missing authentication in Library Reservation System from Yordam Informatics Technology Consulting, Training, and Electronic Systems Industry and Trade Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.3%top 75.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

VendorProductVersions
Yordam Informatics Technology Consulting, Training, and Electronic Systems Industry and Trade Inc. Library Reservation System 0 – before v22.2

Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References