{"id":"CVE-2026-63077","aliases":["EUVD-2026-49369","GHSA-94gx-v738-fx9w"],"status":"published","title":"In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was...","description":"In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was possible via the agent polling protocol","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.94887,"percentile":0.99861,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"cwes":["CWE-502"],"published":"2026-07-27T16:44:32Z","modified":"2026-10-24T13:10:00Z","kev":{"date_added":"2026-08-05","due_date":"2026-08-08","required_action":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","known_ransomware_use":"Known"},"exploitation":[{"source":"euvd","since":"2026-08-05"},{"source":"kev","since":"2026-08-05"}],"exploits":[{"source":"metasploit","id":"exploit/multi/http/jetbrains_teamcity_rce_cve_2026_63077","title":"JetBrains TeamCity Agent Polling Unauthenticated Remote Code Execution","type":"exploit","platform":"Linux,Unix,Windows","date":"2026-07-27","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/multi/http/jetbrains_teamcity_rce_cve_2026_63077"},{"source":"pocgithub","id":"unveiledhistory49/teamcity-cve-2026-63077-remediation","title":"unveiledhistory49/teamcity-cve-2026-63077-remediation","date":"2026-07-30","url":"https://github.com/unveiledhistory49/teamcity-cve-2026-63077-remediation"},{"source":"pocgithub","id":"sfewer-r7/CVE-2026-63077","title":"sfewer-r7/CVE-2026-63077","date":"2026-08-07","url":"https://github.com/sfewer-r7/CVE-2026-63077"},{"source":"pocgithub","id":"AnggaTechI/CVE-2026-63077","title":"AnggaTechI/CVE-2026-63077","date":"2026-08-08","url":"https://github.com/AnggaTechI/CVE-2026-63077"},{"source":"pocgithub","id":"BoredHackerBlog/teamcity-CVE-2026-63077-pcap","title":"BoredHackerBlog/teamcity-CVE-2026-63077-pcap","date":"2026-08-08","url":"https://github.com/BoredHackerBlog/teamcity-CVE-2026-63077-pcap"},{"source":"pocgithub","id":"bakos-sandor-nx/teamcity-cve-2026-63077-remediation","title":"bakos-sandor-nx/teamcity-cve-2026-63077-remediation","date":"2026-08-19","url":"https://github.com/bakos-sandor-nx/teamcity-cve-2026-63077-remediation"},{"source":"pocgithub","id":"0xCyp1337/CVE-2026-63077","title":"0xCyp1337/CVE-2026-63077","date":"2026-09-04","url":"https://github.com/0xCyp1337/CVE-2026-63077"},{"source":"pocgithub","id":"basesixtythree/B63-POC-CVE-2026-63077","title":"basesixtythree/B63-POC-CVE-2026-63077","date":"2026-10-22","url":"https://github.com/basesixtythree/B63-POC-CVE-2026-63077"},{"source":"nuclei","id":"CVE-2026-63077","title":"JetBrains TeamCity \u003c 2026.1.3, 2025.11.7 - Remote Code Execution","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-63077.yaml"}],"products":[{"vendor":"jetbrains","product":"teamcity"}],"references":[{"url":"https://www.jetbrains.com/privacy-security/issues-fixed/","tags":["Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-63077","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63077"},{"url":"https://www.jetbrains.com/privacy-security/issues-fixed"},{"url":"https://github.com/advisories/GHSA-94gx-v738-fx9w"}],"sources":{"cve":[{"id":"CVE-2026-63077","description":"In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was possible via the agent polling protocol","status":"published","published":"2026-07-27T16:44:32.29Z","modified":"2026-09-23T03:55:33.804Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:19:56.284359Z"}],"euvd":[{"id":"EUVD-2026-49369","description":"In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was possible via the agent polling protocol","status":"published","published":"2026-07-27T16:44:32Z","modified":"2026-09-23T03:55:33Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"exploited_since":"2026-08-05","updated_at":"2026-11-02T17:28:01.71506Z"}],"ghsa":[{"id":"GHSA-94gx-v738-fx9w","title":"In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was...","description":"In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was possible via the agent polling protocol","status":"published","published":"2026-07-27T18:31:49Z","modified":"2026-08-05T18:32:31Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T15:10:07.926015Z"}],"kev":[{"id":"CVE-2026-63077","title":"JetBrains TeamCity Deserialization of Untrusted Data Vulnerability","description":"JetBrains TeamCity contains a deserialization of untrusted data vulnerability that could allow unauthenticated remote code execution via the agent polling protocol.","cwes":["CWE-502"],"kev":{"date_added":"2026-08-05","due_date":"2026-08-08","required_action":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","known_ransomware_use":"Known"},"updated_at":"2026-11-02T17:00:15.999436Z"}],"nvd":[{"id":"CVE-2026-63077","description":"In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was possible via the agent polling protocol","status":"published","published":"2026-07-27T17:16:38.83Z","modified":"2026-10-24T13:10:00.147Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:12:33.249634Z"}]}}