JetBrains TeamCity Authentication Bypass Vulnerability
JetBrains — TeamCity
In JetBrains TeamCity before 2023.11.4 authentication bypass allowing to perform admin actions was possible
9.8
99.9%
Vector breakdown
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- Mar 4, 2024
- Modified
- Oct 21, 2025
- Added to KEV
- Mar 7, 2024
- Federal patch due
- Mar 28, 2024
CISA required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Weakness classification
Proof-of-concept & exploitation references
Weaponization
Public repositories whose name or description references CVE-2024-27198, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit - cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.
No public GitHub repositories referencing CVE-2024-27198 were found at last check. Absence here is not proof no exploit exists - see the references below for vendor advisories and write-ups.
References
Frequently asked questions
What is CVE-2024-27198?
In JetBrains TeamCity before 2023.11.4 authentication bypass allowing to perform admin actions was possible
How severe is CVE-2024-27198?
CVE-2024-27198 has a CVSS base score of 9.8 out of 10 (CVSS 3.1).
Is CVE-2024-27198 actively exploited in the wild?
Yes. CVE-2024-27198 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Mar 7, 2024, meaning CISA has confirmed evidence of active exploitation. It is also flagged as used in ransomware campaigns.
What is the EPSS score for CVE-2024-27198?
99.9% - meaning FIRST.org's EPSS model estimates a 99.9% probability this vulnerability will be exploited in the wild within 30 days (100% percentile among all scored CVEs).
Is there exploit tooling available for CVE-2024-27198?
Yes - a public Nuclei template referencing CVE-2024-27198 exist in public repositories we checked.
What type of vulnerability is CVE-2024-27198?
CVE-2024-27198 is classified under CWE-288.
Cross-checked against
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