In JetBrains TeamCity before 2026.1.2 stored XSS via unauthenticated agent registration was possible

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00264.

Exploitation none

Automatable no

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
JetBrains TeamCity unaffected
Version Status Constraints
0 affected < 2026.1.2

No data.

No data.

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Vendors Products
Jetbrains Subscribe
Teamcity Subscribe

Project Subscriptions

Vendors Products
Jetbrains Subscribe
Teamcity Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.jetbrains.com/privacy-security/issues-fixed/ cve-icon
History

Sun, 26 Jul 2026 14:00:00 +0000

Type Values Removed Values Added
Title Stored Cross‑Site Scripting via Unauthenticated Build Agent Registration in JetBrains TeamCity

Fri, 24 Jul 2026 08:45:00 +0000

Type Values Removed Values Added
Title Stored XSS via Unauthenticated Agent Registration in JetBrains TeamCity

Tue, 21 Jul 2026 00:15:00 +0000

Type Values Removed Values Added
Title Stored XSS via Unauthenticated Agent Registration in JetBrains TeamCity

Fri, 17 Jul 2026 08:15:00 +0000

Type Values Removed Values Added
Title Unauthenticated Agent Registration Stored XSS in JetBrains TeamCity

Wed, 15 Jul 2026 02:00:00 +0000

Type Values Removed Values Added
Title Unauthenticated Agent Registration Stored XSS in JetBrains TeamCity

Tue, 14 Jul 2026 03:00:00 +0000

Type Values Removed Values Added
Title Stored XSS via Unauthenticated Agent Registration in JetBrains TeamCity

Mon, 13 Jul 2026 00:00:00 +0000

Type Values Removed Values Added
Title Stored XSS via Unauthenticated Agent Registration in JetBrains TeamCity

Sun, 12 Jul 2026 13:00:00 +0000

Type Values Removed Values Added
Title Stored Cross‑Site Scripting via Unauthenticated Agent Registration in JetBrains TeamCity

Sat, 11 Jul 2026 11:30:00 +0000

Type Values Removed Values Added
Title Stored Cross‑Site Scripting via Unauthenticated Agent Registration in JetBrains TeamCity

Fri, 10 Jul 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Fri, 10 Jul 2026 16:00:00 +0000

Type Values Removed Values Added
First Time appeared Jetbrains
Jetbrains teamcity
Vendors & Products Jetbrains
Jetbrains teamcity

Fri, 10 Jul 2026 14:45:00 +0000

Type Values Removed Values Added
Description In JetBrains TeamCity before 2026.1.2 stored XSS via unauthenticated agent registration was possible
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: JetBrains

Published:

Updated: 2026-07-10T16:59:47.774Z

Reserved: 2026-07-07T09:41:08.700Z

Link: CVE-2026-59795

cve-icon Vulnrichment

Updated: 2026-07-10T15:17:53.828Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-26T13:45:03Z

Weaknesses