JetBrains TeamCity up to 2025.11.2 React Project Creation redirect

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in JetBrains TeamCity up to 2025.11.2. The impacted element is an unknown function of the component React Project Creation Handler. This manipulation causes redirect. This vulnerability is handled as CVE-2026-28194. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in JetBrains TeamCity up to 2025.11.2. Affected by this vulnerability is an unknown functionality of the component React Project Creation Handler. The manipulation with an unknown input leads to a redirect vulnerability. The CWE definition for the vulnerability is CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. As an impact it is known to affect integrity. The summary by CVE is:

In JetBrains TeamCity before 2025.11.3 open redirect was possible in the React project creation flow

The advisory is shared at jetbrains.com. This vulnerability is known as CVE-2026-28194 since 02/25/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1204.001 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 300067 (JetBrains TeamCity < 2025.11.3 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2025.11.3 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (300067) and CERT Bund (WID-SEC-2026-0531). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • JetBrains TeamCity

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.3
CNA Vector (JetBrains): 🔒

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Redirect
CWE: CWE-601
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 300067
Nessus Name: JetBrains TeamCity < 2025.11.3 Multiple Vulnerabilities

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: TeamCity 2025.11.3

Timelineinfo

02/25/2026 Advisory disclosed
02/25/2026 +0 days CVE reserved
02/25/2026 +0 days VulDB entry created
02/28/2026 +3 days VulDB entry last update

Sourcesinfo

Advisory: jetbrains.com
Status: Confirmed

CVE: CVE-2026-28194 (🔒)
GCVE (CVE): GCVE-0-2026-28194
GCVE (VulDB): GCVE-100-347761
CERT Bund: WID-SEC-2026-0531 - JetBrains TeamCity: Mehrere Schwachstellen

Entryinfo

Created: 02/25/2026 15:01
Updated: 02/28/2026 02:20
Changes: 02/25/2026 15:01 (65), 02/27/2026 08:17 (7), 02/28/2026 02:20 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Interested in the pricing of exploits?

See the underground prices here!