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CVE-2026-49378

In JetBrains TeamCity before 2026.1 credentials parameters were exposed via parameter autocompletion

4.3 Medium

In JetBrains TeamCity before 2026.1 credentials parameters were exposed via parameter autocompletion

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
None
Availability
None

Exploit likelihood

0.22%Up 0.2 points since May 30, 2026
90%50%10%1%

What each source reports

CVE List Score used 4.3

In JetBrains TeamCity before 2026.1 credentials parameters were exposed via parameter autocompletion

Record
CVE-2026-49378
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-862
Updated
2026-11-02
EUVDEUVD-2026-33386 4.3

In JetBrains TeamCity before 2026.1 credentials parameters were exposed via parameter autocompletion

Record
EUVD-2026-33386
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-pg2h-77h8-9m6v 4.3

In JetBrains TeamCity before 2026.1 credentials parameters were exposed via parameter autocompletion

In JetBrains TeamCity before 2026.1 credentials parameters were exposed via parameter autocompletion

Record
GHSA-pg2h-77h8-9m6v
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-862
Updated
2026-11-02
NVD 4.3

In JetBrains TeamCity before 2026.1 credentials parameters were exposed via parameter autocompletion

Record
CVE-2026-49378
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-862
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliases, publishedEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-49378 is a medium vulnerability (CVSS 4.3) 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.

References

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