CVE-2026-63077
CriticalPublished
JetBrains TeamCity Deserialization of Untrusted Data Vulnerability
- Published
- Jul 27, 2026
- Updated
- Sep 23, 2026
- Assigning CNA
- JetBrains
- Evidence observed
- Aug 5, 2026
Primary CVSS
9.8/ 10Critical
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H89.6%
High · next 30 days
- Percentile
- 99.8%
- Model date
- Oct 17, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was possible via the agent polling protocol
Sources
Repository evidence: Files: 2 · Repositories: 2
1 Module1 Template
modules/exploits/multi/http/jetbrains_teamcity_rce_cve_2026_63077.rb
Metasploit Framework modulesDeclared conditions
- platform: Linux,Unix,Windows($.exploit_multi/http/jetbrains_teamcity_rce_cve_2026_63077.platform)
- verification: check_declared($.exploit_multi/http/jetbrains_teamcity_rce_cve_2026_63077.check)
http/cves/2026/CVE-2026-63077.yaml
Nuclei TemplatesDeclared conditions
- network: http($.protocol_keys)
- verification: dsl,status,word($.matchers[*].type)
Responsible use
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