SB2026081790 - Multiple vulnerabilities in TeamCity

Description

This security bulletin contains information about 2 vulnerabilities.

1) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2026-49372)

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to perform server-side request forgery.

The vulnerability exists due to server-side request forgery in build status when handling unauthenticated build status requests. A remote attacker can send a crafted request to perform server-side request forgery.

2) Cross-site scripting (CVE-ID: CVE-2026-49375)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]

The vulnerability allows a remote attacker to execute arbitrary script in the victim's browser.

The vulnerability exists due to cross-site scripting in the repository download page when handling crafted input in web requests. A remote attacker can send a specially crafted request to execute arbitrary script in the victim's browser.

Remediation

Install update from vendor's website.

References

• https://www.jetbrains.com/privacy-security/issues-fixed/#c525924165823a818a7db48896dc2154
• https://www.jetbrains.com/privacy-security/issues-fixed/#6152f9ffbcf915ce52e3194e3b6efd0c