CVE-2026-100255

⚠️ high

In JetBrains TeamCity before 2026.2, 2026.1.4, 2025.11.8 administrator account takeover was possible via password reset

CVSS Score

8.1

High

EPSS Score

0.4

Exploit Probability

Published Date

2026-09-30

First Seen: 2026-10-04

This CVE is High Risk - more severe than 76.6% of all 369,977 vulnerabilities in our database.

#86,564

Top 25% most severe

Severity Percentile

🔍 Exploitation Status

None

No known exploits

⚙️ Automatable

Requires human interaction

💥 Technical Impact

Total

Complete system compromise possible

SSVC data provided by CISA

Last Modified 2026-10-02

Source NVD 🔗

CVSS Vector 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE IDs (Weakness Types)

CWE-1289

📦 Affected Products 2

Vendor	Product	Status	Affected Versions
jetbrains	teamcity	Affected	< 2025.11.8
jetbrains	teamcity	Affected	> 2026.1 < 2026.1.4

Vendor Advisory

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-100253	⚠️ high	8.8	0.4	In JetBrains TeamCity before 2026.2, 2026.1.4, 2025.11.8 sandbox escape leading to code execution was possible via the...	2026-09-30
CVE-2026-100254	⚠️ high	8.8	0.5	In JetBrains TeamCity before 2026.2, 2026.1.4, 2025.11.8 authenticated users could execute commands on Windows servers...	2026-09-30
CVE-2026-63077	⛔ critical	9.8	10.7	In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was possible via the agent pollin...	2026-07-27
CVE-2026-65906	⚠️ high	8.8	0.4	In JetBrains TeamCity before 2026.1.2, 2025.11.6 сode execution via Kotlin DSL sandbox escape was possible	2026-07-23
CVE-2026-59793	⚠️ high	8.8	0.3	In JetBrains TeamCity before 2026.1.2 arbitrary file access was possible via the Perforce VCS integration	2026-07-10
CVE-2026-59794	⚠️ high	7.3	0.2	In JetBrains TeamCity before 2026.1.2 stored XSS on the cloud profile page was possible via agent-reported data	2026-07-10

These CVEs affect the same products