JetBrains TeamCity < 2026.1.3, 2025.11.7 - Remote Code Execution

JetBrains TeamCity 2026.1.3, 2025.11.7 contains a remote code execution caused by unauthenticated access via the agent polling protocol, letting unauthenticated attackers execute arbitrary code remotely, exploit requires no authentication. id: CVE-2026-63077 info: name: JetBrains TeamCity 2026.1....

teamcity-CVE-2026-63077-pcap

teamcity-CVE-2026-63077-pcap teamcity teamcity-CVE-2026-63077 exploitation pcap info: https://blog.jetbrains.com/teamcity/2026/07/cve-2026-63077/ https://www.rapid7.com/blog/post/ra-unauthenticated-rce-in-jetbrains-teamcity-cve-2026-63077/ Target: teamcity server 2025.11.3 docker 192.168.64.31 po...

Attackers Breached JetBrains Cadence via Unpatched TeamCity, Extracting AWS Credentials

JetBrains is urging Cadence users to revoke and rotate all credentials following a security incident last month in which unidentified threat actors exploited a recently disclosed critical vulnerability in TeamCity to breach its own environment. "Cadence users should immediately revoke or rotate a...

teamcity-cve-2026-63077-remediation

企业安全修复套件 一套生产级安全工程套件，包含四个专业的事件响应与加固软件包。 📁 仓库模块架构 root@kitploit: . ├── README.md 企业套件索引与快速入门 ├── package.json 主测试运行器（Jest + Python unittest 套件） ├── .gitignore 生产仓库排除项 │ ├── supply-chain-security/ 目标 1：供应链安全即服务（Injective 规范） │ ├── README.md 模块架构与红队测试结果 │ ├── SUPPLYCHAINSECURITYPLAYBOOK.md 主部署手册 │ ├...

Exploit for Deserialization of Untrusted Data in Jetbrains Teamcity

teamcity-CVE-2026-63077-pcap teamcity teamcity-CVE-2026-63077...

Rapid7 Analysis: Unauthenticated Remote Code Execution in JetBrains TeamCity (CVE-2026-63077)

Overview On July 27, 2026, JetBrains published a security advisory for CVE-2026-63077, a critical unsafe deserialization vulnerability affecting JetBrains TeamCity. An attacker who can reach a TeamCity server over HTTP or HTTPS can exploit the agent polling protocol without credentials and execut...

CISA Flags TeamCity CVE-2026-63077 RCE Flaw Under Active Exploitation in the Wild

A newly patched security flaw impacting on-premise versions of JetBrains TeamCity has come under active exploitation in the wild, according to the U.S. Cybersecurity and Infrastructure Security Agency CISA. The vulnerability in question is CVE-2026-63077 CVSS score: 9.8, a case of deserialization...

VulnCheck KEV: CVE-2026-63077

JetBrains TeamCity contains a deserialization of untrusted data vulnerability that could allow unauthenticated remote code execution via the agent polling protocol...

JetBrains TeamCity < 2025.11.7 / 2026.x < 2026.1.3 (CVE-2026-63077)

The version of JetBrains TeamCity installed on the remote host is prior to 2025.11.7, or prior to 2026.1.3. It is, therefore, affected by a vulnerability: - In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was possible via the agent polling protocol...

Critical TeamCity Flaw Could Let Attackers Run OS Commands Without Logging In

JetBrains is urging customers of on-premise versions of TeamCity to update to the latest version following the discovery of a critical security issue that could result in arbitrary code execution. The vulnerability, assigned CVE-2026-63077 CVSS score: 9.8, affects all TeamCity On-Premises version...

CVE-2026-63077

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

CVE-2026-63077

CVE-2026-63077 affects JetBrains TeamCity On-Premises: unauthenticated remote code execution via deserialization of untrusted data in the agent polling protocol. Affected are TeamCity versions prior to 2025.11.7 and prior to 2026.1.3. The root cause is deserialization of untrusted data that allow...

JetBrains TeamCity Agent Polling Unauthenticated Remote Code Execution

This module exploits an unsafe XStream deserialization vulnerability in the JetBrains TeamCity agent polling protocol. An unauthenticated attacker can register a build agent, then submit a crafted error response that causes TeamCity to deserialize an attacker-controlled object graph. The object...