CVE-2026-59795
HighPublished
In JetBrains TeamCity before 2026.1.2 stored XSS via unauthenticated agent registration was possible
- Published
- Jul 10, 2026
- Updated
- Jul 10, 2026
- Assigning CNA
- JetBrains
- Evidence observed
- Nov 5, 2026
Primary CVSS
8.1/ 10High
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N0.3%
Low · next 30 days
- Percentile
- 27.3%
- Model date
- Nov 4, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
In JetBrains TeamCity before 2026.1.2 stored XSS via unauthenticated agent registration was possible
Sources
Proof-of-concept for CVE-2026-59795: unauthenticated stored XSS in TeamCity agent details, chained to SYSTEM_ADMIN account creation and plugin-upload RCE.
Responsible use
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