Detections
Analytics

JetBrains YouTrack < 2026.2.18991 Multiple Vulnerabilities

high Nessus Plugin ID 362482

Synopsis

The remote host is affected by multiple vulnerabilities.

Description

The version of JetBrains YouTrack installed on the remote host is prior to 2026.2.18991. It is, therefore, affected by multiple vulnerabilities:

 - In JetBrains YouTrack before 2026.2.18991 missing authorisation allowed users with read-only project access to overwrite project notification templates. (CVE-2026-100262)

 - In JetBrains YouTrack before 2026.2.18991 changing article visibility settings was possible without update permission. (CVE-2026-100261)

 - In JetBrains YouTrack before 2026.2.18991 mailbox integration allowed authentication after a password reset. (CVE-2026-100260)

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

Solution

Upgrade to JetBrains YouTrack version 2026.2.18991, or later.

See Also

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

Plugin Details

Severity: High

ID: 362482

File Name: jetbrains_youtrack_2026_2_18991.nasl

Version: 1.1

Type: Local

Agent: windows, macosx, unix

Family: Misc.

Published: 10/2/2026

Updated: 10/2/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.9

Percentile: 52.43

CVSS v2

Risk Factor: High

Base Score: 8

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

CVSS Score Source: CVE-2026-100262

CVSS v3

Risk Factor: High

Base Score: 7.6

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

Vulnerability Information

CPE: cpe:/a:jetbrains:youtrack

Required KB Items: installed_sw/JetBrains YouTrack

Patch Publication Date: 9/30/2026

Vulnerability Publication Date: 9/30/2026

Reference Information

CVE: CVE-2026-100257, CVE-2026-100258, CVE-2026-100259, CVE-2026-100260, CVE-2026-100261, CVE-2026-100262, CVE-2026-100263, CVE-2026-100264