CVE-2026-59795
In JetBrains TeamCity before 2026.1.2 stored XSS via unauthenticated agent registration was possible
In JetBrains TeamCity before 2026.1.2 stored XSS via unauthenticated agent registration was possible
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
In JetBrains TeamCity before 2026.1.2 stored XSS via unauthenticated agent registration was possible
- Record
CVE-2026-59795- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2026-42913
In JetBrains TeamCity before 2026.1.2 stored XSS via unauthenticated agent registration was possible
- Record
EUVD-2026-42913- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-ch3x-q6cp-54rw
In JetBrains TeamCity before 2026.1.2 stored XSS via unauthenticated agent registration was possible
In JetBrains TeamCity before 2026.1.2 stored XSS via unauthenticated agent registration was possible
- Record
GHSA-ch3x-q6cp-54rw- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
In JetBrains TeamCity before 2026.1.2 stored XSS via unauthenticated agent registration was possible
- Record
CVE-2026-59795- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N - CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | JoakimBulow/CVE-2026-59795 | 2026-09-28 |
History
| Recorded | Changed | Sources |
|---|---|---|
| exploits, facts | PoC in GitHub | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-59795 is a high vulnerability (CVSS 8.1) in Jetbrains Teamcity, published July 10, 2026. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.42%, the 36th percentile. No source names a fixed version.