P4Verified

CVE-2026-100254: teamcity before 2025.11.8 (exclusive), from 2026.1 (inclusive), before 2026.1.4 (exclusive); +1 more affected products

CVE-2026-100254. CVSS 3.1 base score 8.8 (HIGH, Vendor/CNA). EPSS 0.00461 (percentile 0.37768), scored 2026-10-05.

Affected technology

teamcity · before 2025.11.8 (exclusive)
jetbrains

teamcity · from 2026.1 (inclusive), before 2026.1.4 (exclusive)
jetbrains

TeamCity · 0 to before 2026.2, 2026.1.4, 2025.11.8
JetBrains

Description’s affected range: before 2026.2

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

8 authenticated users could execute commands on Windows servers via CRLF injection in Pipeline Git connection settings. Vendor/CNA’s CVSS 3.1 assessment (base score 8.8/10) rates confidentiality, integrity and availability impact as high.

Published 2026-10-06 17:56:29.824554+00:00

CWE: CWE-78
CCR priority: 35.3 /100 (P4)
CVSS 3.1: 8.8 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · Vendor/CNA
EPSS: 0.00461 · percentile 0.37768 · 2026-10-05
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-06 17:55:17.257073+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-100254.html