CVE-2024-23917
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedIn JetBrains TeamCity before 2023.11.3 authentication bypass leading to RCE was possible
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceJetBrains TeamCity before version 2023.11.3 contains an authentication bypass vulnerability that allows remote attackers to bypass authentication mechanisms and execute arbitrary code on the affected server. The critical CVSS score of 9.8 reflects the severe impact of unauthenticated RCE capability.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 2023.11.3CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- 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
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Locate TeamCity installation directoryIdentify the server where TeamCity is installed and find the main installation directory (commonly /TeamCity on Linux or the installation folder on Windows).Affected if TeamCity is found to be installed on the server.
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Determine installed TeamCity versionAccess the TeamCity web interface and navigate to the About page (typically Administration > About) to view the exact version number, or check version metadata files in the installation directory.Affected if The displayed version is a release earlier than 2023.11.3.
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Verify version against vulnerable rangeCompare the identified version number to the affected range: any version before 2023.11.3 is considered vulnerable to the authentication bypass.Affected if The installed version is lower than 2023.11.3 (for example, 2023.11.2, 2023.11.1, 2023.9.x, or earlier releases).
A system is affected if the installed TeamCity version is any release prior to 2023.11.3, as these versions contain the authentication bypass vulnerability.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped2023.11.3
Upgrade TeamCity to version 2023.11.3 or later to patch the authentication bypass. If immediate patching is not possible, restrict network access to the TeamCity management interface through firewall rules or VPN access.
TeamCity 2023.11.3 or later
- 1. Back up your TeamCity data directory, configuration, and database before proceeding
- 2. Download TeamCity 2023.11.3 or later from the official JetBrains website (www.jetbrains.com/teamcity/download)
- 3. Stop the TeamCity server service
- 4. Install the updated TeamCity version using the standard upgrade procedure for your deployment method (Windows installer, Linux tar.gz, or Docker)
- 5. Start the TeamCity server after installation completes
- 6. Verify the server is running and accessible by logging in with valid credentials
- 7. Confirm the TeamCity version displayed in the administration area matches the patched release (2023.11.3 or later)
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation4.0 h
- Testing6.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,128.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-23917 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2024-23917 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data