[NEW] [high] JetBrains TeamCity: Multiple vulnerabilities

highCVE-2026-59793 CVE-2026-59794 CVE-2026-59795 CVE-2026-59796

An attacker can exploit multiple vulnerabilities in JetBrains TeamCity to execute arbitrary code, manipulate data, or perform cross-site scripting attacks.

CSIRTS triage

vendor: JetBrains product: TeamCity Remote code executionOtherCross-site scripting

What: Multiple vulnerabilities allow an attacker to execute arbitrary code, manipulate data, or perform cross-site scripting attacks.
Who is affected: Users of JetBrains TeamCity with the affected versions.
Urgency: Remediation is urgent due to the high severity and potential for exploitation of these vulnerabilities.
Action: Update JetBrains TeamCity to the latest version to address the vulnerabilities.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: high
Published: 2026-07-13
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2288

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-597930.38% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 30% of all scored CVEs.
Low exploitation riskCVE-2026-597940.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all scored CVEs.
Low exploitation riskCVE-2026-597950.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 18% of all scored CVEs.
Low exploitation riskCVE-2026-597960.27% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 19% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-59793	coverage & exploitation status	NVD · CVE.org
CVE-2026-59794	coverage & exploitation status	NVD · CVE.org
CVE-2026-59795	coverage & exploitation status	NVD · CVE.org
CVE-2026-59796	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for JetBrains TeamCity

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

high[NEW] [high] JetBrains TeamCity: Vulnerability allows code executioncert-bund · 2026-07-28
criticalCVE-2026-63077: In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was pos…nvd · 2026-07-27
high[NEW] [high] JetBrains TeamCity: Multiple vulnerabilities allow code executioncert-bund · 2026-07-24
criticalCVE-2026-65907: In JetBrains TeamCity before 2026.1.2, 2025.11.6 code execution in Git VCS roots was possiblenvd · 2026-07-23
highCVE-2026-65906: In JetBrains TeamCity before 2026.1.2, 2025.11.6 сode execution via Kotlin DSL sandbox escape …nvd · 2026-07-23
highCVE-2026-59796: In JetBrains TeamCity before 2026.1.2 pipeline modification was possible due to improper permi…nvd · 2026-07-10