---
id: CVE-2026-63077
title: >-
  In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code
  execution was possible via the agent polling protocol
summary: >-
  In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code
  execution was possible via the agent polling protocol
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-502
vendor: JetBrains
product: TeamCity
affected:
  - 'TeamCity < 2026.1.3, 2025.11.7'
ssvc:
  exploitation: active
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-07-27T00:00:00+00:00'
exploited: true
exploitAvailable: true
published: '2026-07-27'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T03:55:33.804Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-63077'
references:
  - url: 'https://www.jetbrains.com/privacy-security/issues-fixed/'
tags:
  - cve.org
  - in-the-wild
  - exploit-available
  - kev
epss: 0.09763
epssPercentile: 0.95358
kev: true
kevDateAdded: '2026-08-05'
kevDueDate: '2026-08-08'
kevRansomware: true
exploits:
  github: 6
  githubRepos:
    - 'https://github.com/sfewer-r7/CVE-2026-63077'
    - 'https://github.com/0xCyp1337/CVE-2026-63077'
    - 'https://github.com/unveiledhistory49/teamcity-cve-2026-63077-remediation'
  metasploit:
    - exploit/multi/http/jetbrains_teamcity_rce_cve_2026_63077
  nuclei:
    - CVE-2026-63077
  checkedAt: '2026-09-25T08:21:06.749Z'
ingestedAt: '2026-09-23T04:16:39.144Z'
---

## Overview

In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was possible via the agent polling protocol

## Affected

- `TeamCity < 2026.1.3, 2025.11.7`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.