CVE-2026-63077: In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was possible via the agent polling protocol

Details

Source

NVD Recent CVEs (US · database · site)

Severity

critical — CVSS 9.8

Published

2026-07-27

Last updated

2026-07-28

Exploitation

Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-63077

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-2026-630770.65% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 48% of all scored CVEs.

Referenced CVEs

Same CVEs, other sources

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

• high[NEW] [high] JetBrains TeamCity: Vulnerability allows code executioncert-bund

Recent advisories for In 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
• 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
• high[NEW] [high] JetBrains TeamCity: Multiple vulnerabilitiescert-bund · 2026-07-13
• highCVE-2026-59796: In JetBrains TeamCity before 2026.1.2 pipeline modification was possible due to improper permi…nvd · 2026-07-10

More from NVD Recent CVEs

• unknownCVE-2026-18556: Authentication bypass using an alternate path or channel vulnerability in N-able N-central all…2026-08-01
• unknownCVE-2026-55735: Improper Verification of Cryptographic Signature in ueberauth guardian allows an unauthenticat…2026-08-01
• unknownCVE-2026-55734: Allocation of Resources Without Limits or Throttling vulnerability in ueberauth guardian (Guar…2026-08-01
• unknownCVE-2026-55733: Allocation of Resources Without Limits or Throttling in ueberauth guardian allows denial of se…2026-08-01
• unknownCVE-2026-54894: Allocation of Resources Without Limits or Throttling in ueberauth guardian allows denial of se…2026-08-01