Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-100277

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
30/09/2026
Last modified:
02/10/2026

Description

In JetBrains YouTrack before 2026.2.19197 account takeover was possible by replaying a notification signature

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L CVSS v3.1 Severity and Metrics:

Base Score: 8.90 HIGH
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): High
Availability (A): Low

Base Score 3.x
8.90
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:jetbrains:youtrack:*:*:*:*:*:*:*:* 2026.2.19197 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools