{
  "crds_version": "0.1",
  "kind": "base",
  "id": "crds:cve-2023-42793",
  "revision": 1,
  "title": "JetBrains TeamCity — Authentication Bypass to Code Execution",
  "summary": "JetBrains TeamCity lets an unauthenticated caller past its login check and on to code execution on the build server — the machine holding credentials for everything it deploys.",
  "source_type": "cve",
  "severity": "critical",
  "cvss": {
    "score": 9.8,
    "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "version": "3.1"
  },
  "epss": 0.99979,
  "exploitation": {
    "known_exploited": true,
    "exploit_available": true,
    "attack_complexity": "low",
    "kev_added": "2023-10-04",
    "prerequisites": "Network access to the build server"
  },
  "remediation": {
    "patch_available": true,
    "fixed_in": [
      "TeamCity 2023.05.4"
    ]
  },
  "mitre_attack": [
    "T1190"
  ],
  "kill_chain": "initial_access",
  "recommended_action": "Upgrade TeamCity to 2023.05.4 or later, and rotate every credential the server stored.",
  "confidence": "high",
  "provenance": [
    {
      "fields": [
        "cvss",
        "exploitation.attack_complexity",
        "exploitation.exploit_available",
        "references",
        "published_at"
      ],
      "source": "https://nvd.nist.gov/vuln/detail/CVE-2023-42793",
      "retrieved_at": "2026-08-07T16:52:23.742Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "exploitation.known_exploited",
        "exploitation.kev_added"
      ],
      "source": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "retrieved_at": "2026-08-07T16:52:23.742Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "epss"
      ],
      "source": "https://api.first.org/data/v1/epss?cve=CVE-2023-42793",
      "retrieved_at": "2026-08-07T16:52:23.742Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "title",
        "summary",
        "severity",
        "remediation",
        "mitre_attack",
        "kill_chain",
        "recommended_action",
        "confidence",
        "tags",
        "exploitation.prerequisites"
      ],
      "source": "https://nvd.nist.gov/vuln/detail/CVE-2023-42793",
      "retrieved_at": "2026-08-07T16:52:23.742Z",
      "confidence": "high",
      "extractor": "claude-code"
    }
  ],
  "references": [
    {
      "type": "cve",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-42793",
      "label": "NVD record"
    },
    {
      "type": "cisa",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "label": "CISA Known Exploited Vulnerabilities catalog"
    },
    {
      "type": "vendor_advisory",
      "url": "https://blog.jetbrains.com/teamcity/2023/09/cve-2023-42793-vulnerability-post-mortem/"
    },
    {
      "type": "vendor_advisory",
      "url": "https://www.jetbrains.com/privacy-security/issues-fixed/"
    },
    {
      "type": "exploit",
      "url": "http://packetstormsecurity.com/files/174860/JetBrains-TeamCity-Unauthenticated-Remote-Code-Execution.html"
    }
  ],
  "published_at": "2023-09-19T17:15:08.330Z",
  "issued_at": "2026-08-07T16:52:23.742Z",
  "tags": [
    "jetbrains",
    "teamcity",
    "ci-cd",
    "supply-chain"
  ]
}