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    CVE-2023-42793

    In JetBrains TeamCity before 2023.05.4 authentication bypass leading to RCE on TeamCity Server was possible

    Published:Sep 19, 2023
    Last Modified:Oct 24, 2025
    EPS:Sep 19, 2023
    EPSS Score:0.92913
    CVSS Score:9.8

    CISA Notification

    Description

    In JetBrains TeamCity before 2023.05.4 authentication bypass leading to RCE on TeamCity Server was possible

    Required Action:

    Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

    Notes:

    No extra notes provided.

    Due Date
    Oct 25, 2023
    1052 days ago
    Alert Date
    Oct 4, 2023
    1073 days ago

    Affected Products

    Vendor
    Jetbrains
    Product
    Teamcity

    Exploits

    http://packetstormsecurity.com/files/174860/JetBrains-TeamCity-Unauthenticated-Remote-Code-Execution.htmlhttps://www.sonarsource.com/blog/teamcity-vulnerability/http://packetstormsecurity.com/files/174860/JetBrains-TeamCity-Unauthenticated-Remote-Code-Execution.htmlhttps://www.exploit-db.com/exploits/51884https://github.com/B4l3rI0n/CVE-2023-42793https://github.com/becrevex/CVE-2023-42793https://github.com/burakacar6/CVE-2023-42793-TeamCity-Unauthenticated-RCEhttps://github.com/cxdxnt/CVE-2023-42793https://github.com/DDestinys/CVE-2023-42793https://github.com/FlojBoj/CVE-2023-42793https://github.com/H454NSec/CVE-2023-42793https://github.com/hotplugin0x01/CVE-2023-42793https://github.com/HusenjanDev/CVE-2023-42793https://github.com/jakehomb/cve-2023-42793https://github.com/johnossawy/CVE-2023-42793_POChttps://github.com/junnythemarksman/CVE-2023-42793https://github.com/StanleyJobsonAU/GhostTownhttps://github.com/SwiftSecur/teamcity-exploit-cve-2023-42793https://github.com/syaifulandy/Nuclei-Template-CVE-2023-42793.yamlhttps://github.com/syorik/CVE-2023-42793https://github.com/whoamins/CVE-2023-42793https://github.com/Zenmovie/CVE-2023-42793

    Related CVEs

    CVE-2026-63077 (CVSS 9.8) — In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was possible via the ag…
    CVE-2026-65907 (CVSS 9.1) — In JetBrains TeamCity before 2026.1.2, 2025.11.6 code execution in Git VCS roots was possible…
    CVE-2026-65906 (CVSS 8.8) — In JetBrains TeamCity before 2026.1.2, 2025.11.6 сode execution via Kotlin DSL sandbox escape was possible…
    CVE-2026-59796 (CVSS 8.1) — In JetBrains TeamCity before 2026.1.2 pipeline modification was possible due to improper permission checks…
    CVE-2026-59795 (CVSS 8.1) — In JetBrains TeamCity before 2026.1.2 stored XSS via unauthenticated agent registration was possible…
    CVE-2026-59794 (CVSS 7.3) — In JetBrains TeamCity before 2026.1.2 stored XSS on the cloud profile page was possible via agent-reported dat…
    CVE-2026-59793 (CVSS 8.8) — In JetBrains TeamCity before 2026.1.2 arbitrary file access was possible via the Perforce VCS integration…
    CVE-2026-49381 (CVSS 3.4) — In JetBrains TeamCity before 2026.1 stored XSS on the SAML login page was possible…
    CVE-2026-49380 (CVSS 3.1) — In JetBrains TeamCity before 2026.1 open redirect in the SAML plugin was possible…
    CVE-2026-49379 (CVSS 6.5) — In JetBrains TeamCity before 2026.1 credentials could be exposed in thread names…

    References

    http://packetstormsecurity.com/files/174860/JetBrains-TeamCity-Unauthenticated-Remote-Code-Execution.html
    https://attackerkb.com/topics/1XEEEkGHzt/cve-2023-42793
    https://blog.jetbrains.com/teamcity/2023/09/cve-2023-42793-vulnerability-post-mortem/
    https://www.jetbrains.com/privacy-security/issues-fixed/
    https://www.rapid7.com/blog/post/2023/09/25/etr-cve-2023-42793-critical-authentication-bypass-in-jetbrains-teamcity-ci-cd-servers/
    https://www.securityweek.com/recently-patched-teamcity-vulnerability-exploited-to-hack-servers/
    https://www.sonarsource.com/blog/teamcity-vulnerability/
    http://packetstormsecurity.com/files/174860/JetBrains-TeamCity-Unauthenticated-Remote-Code-Execution.html
    https://attackerkb.com/topics/1XEEEkGHzt/cve-2023-42793
    https://blog.jetbrains.com/teamcity/2023/09/cve-2023-42793-vulnerability-post-mortem/
    https://www.jetbrains.com/privacy-security/issues-fixed/
    https://www.rapid7.com/blog/post/2023/09/25/etr-cve-2023-42793-critical-authentication-bypass-in-jetbrains-teamcity-ci-cd-servers/
    https://www.securityweek.com/recently-patched-teamcity-vulnerability-exploited-to-hack-servers/
    https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-42793

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High