CVE-2026-49376
In JetBrains TeamCity before 2026.1 insufficient username validation in the SAML plugin
In JetBrains TeamCity before 2026.1 insufficient username validation in the SAML plugin
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
In JetBrains TeamCity before 2026.1 insufficient username validation in the SAML plugin
- Record
CVE-2026-49376- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
EUVDEUVD-2026-33384
In JetBrains TeamCity before 2026.1 insufficient username validation in the SAML plugin
- Record
EUVD-2026-33384- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-qhvc-3ggx-6rj7
In JetBrains TeamCity before 2026.1 insufficient username validation in the SAML plugin
In JetBrains TeamCity before 2026.1 insufficient username validation in the SAML plugin
- Record
GHSA-qhvc-3ggx-6rj7- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
NVD
In JetBrains TeamCity before 2026.1 insufficient username validation in the SAML plugin
- Record
CVE-2026-49376- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-49376 is a medium vulnerability (CVSS 6.5) in Jetbrains Teamcity, published May 29, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.22%, the 12th percentile. No source names a fixed version.