JetBrains YouTrack < 2026.1.13162 Multiple Vulnerabilities

high Nessus Plugin ID 318784

Synopsis

The remote host is missing one or more security updates.

Description

The version of JetBrains YouTrack installed on the remote host is prior to 2026.1.13162. It is, therefore, affected by multiple vulnerabilities as referenced in the advisory.

- In JetBrains YouTrack before 2026.1.13162 information disclosure was possible on fetchApp requests.
(CVE-2026-49370)

- In JetBrains YouTrack before 2026.1.13162 stored XSS in project notification templates was possible.
(CVE-2026-49368)

- In JetBrains YouTrack before 2026.1.13162 information disclosure was possible on Users and Groups pages.
(CVE-2026-49369)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to JetBrains YouTrack version 2026.1.13162, or later.

See Also

https://www.jetbrains.com/privacy-security/issues-fixed/

Plugin Details

Severity: High

ID: 318784

File Name: jetbrains_youtrack_2026_1_13162.nasl

Version: 1.1

Type: Local

Agent: windows, macosx, unix

Family: Misc.

Published: 6/5/2026

Updated: 6/5/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

CVSS Score Source: CVE-2026-49370

CVSS v3

Risk Factor: High

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Vulnerability Information

CPE: cpe:/a:jetbrains:youtrack

Required KB Items: installed_sw/JetBrains YouTrack

Patch Publication Date: 5/29/2026

Vulnerability Publication Date: 5/29/2026

Reference Information

CVE: CVE-2026-49368, CVE-2026-49369, CVE-2026-49370

IAVA: 2026-A-0536