CVE-2026-65907
Remote code execution in TeamCity via malicious Git VCS roots.
Is CVE-2026-65907 being exploited?
Not confirmed. CVE-2026-65907 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.42% probability of exploitation in the next 30 days.
How severe is CVE-2026-65907?
CVE-2026-65907 is rated Critical with a CVSS score of 9.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-65907?
Yes. A fix has been recorded for CVE-2026-65907. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-65907 affect?
CVE-2026-65907 affects JetBrains TeamCity (<2026.1.2), JetBrains TeamCity (<2025.11.6). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-65907?
Upgrade TeamCity to 2026.1.2 or 2025.11.6 immediately; restrict untrusted Git roots.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution via malicious Git VCS roots, enabling server compromise, pipeline tampering, and credential/data theft.
Immediate action required
- affected< 2026.1.2, 2025.11.6
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.