CVE-2026-59795: teamcity before 2026.1.2 (exclusive); +1 more affected products

Affected technology

teamcity · before 2026.1.2 (exclusive)
jetbrains

TeamCity · 0 to before 2026.1.2
JetBrains

Description’s affected range: before 2026.1.2 stored XSS via unauthenticated agent registration was possible

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · No privileges required · User interaction required

Attack conditions (NVD, CVSS 3.1): Network (remote) · No privileges required · User interaction required

What an attacker can do

Vendor/CNA’s CVSS 3.1 assessment (base score 8.1/10) rates confidentiality and integrity impact as high; availability impact as none. NVD’s CVSS 3.1 assessment (base score 6.1/10) rates confidentiality and integrity impact as low; availability impact as none. The description does not specify what an attacker can achieve beyond these rated impacts.