Authenticated username disclosure via missing authorization
Published Jun 23, 2025 · Updated Jun 23, 2025
Missing authorization in JetBrains TeamCity before 2025.03.3 allows remote authenticated users to view usernames without permission. JetBrains has not identified the affected endpoint or published how its authorization logic returns usernames to underprivileged accounts. A valid low-privilege account is required, and the reported consequence is limited to disclosure of usernames.
Summary
What happened
Missing authorization in JetBrains TeamCity before 2025.03.3 allows remote authenticated users to view usernames without permission. JetBrains has not identified the affected endpoint or published how its authorization logic returns usernames to underprivileged accounts. A valid low-privilege account is required, and the reported consequence is limited to disclosure of usernames.
The record
- CVE
- CVE-2025-52878
- Published
- Jun 23, 2025
- Updated
- Jun 23, 2025
- Vendor
- JetBrains
- Product
- TeamCity
- Classifications
- CWE-862, T1087
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 23, 2025CVE publishedPublication date reported by the CVE source.
- Jun 23, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=0 <2025.03.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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