JetBrains TeamCity On-Premises: Schwachstelle ermöglicht Privilegieneskalation
WID-SEC-2026-1460 · first 12.05.2026 · updated 12.05.2026 · CVSS 7,1
What it is about
TeamCity ist ein Continuous Integration und Deployment Tool für Entwickler und DevOps Ingenieure. Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in JetBrains TeamCity On-Premises ausnutzen, um seine Privilegien zu erhöhen.
Under what conditions?
Over the network, but only with valid access (login required), for example with stolen credentials or as an insider.
What can happen in the worst case
An attacker could use the vulnerability to
- seine Privilegien zu erhöhen
Am I affected?
Affected according to the BSI:
- JetBrains TeamCity On-Premises <2026.1
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- JetBrains TeamCity On-Premises 2026.1
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- JetBrains Blog vom 2026-05-11 blog.jetbrains.com
- NIST Vulnerability Database vom 2026-05-11 nvd.nist.gov
CVE: CVE-2026-44413
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.