🛡️ CVE-2026-59795 — teamcity

🟠 CVSS 8.1 — High ✅ No Known Exploit CWE-79 NVD
8.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

In JetBrains TeamCity before 2026.1.2 stored XSS via unauthenticated agent registration was possible

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability none.

Weakness class

CVE-2026-59795 is classified as CWE-79: Cross-site Scripting (XSS). User-supplied data is written into a page without escaping, so attacker script runs in the browser of anyone who views it.

Affected software

CVE-2026-59795 is recorded against 1 package.

  • teamcity (fixed in 2026.1.2)

Timeline and source

Published on 10 July 2026 and last revised on 13 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

www.jetbrains.com

Details

Severity HIGH
CVSS Score 8.1
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CWE CWE-79
Public Exploit ✅ No
Source NVD
Published 2026-07-10
Updated 2026-08-11
Modified 2026-07-13
Fix URL N/A

Affected Packages

Software From version Fixed in
teamcity — 2026.1.2

Similar Threats

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