CVE-2026-111094 Critical · 9.8 EPSS 0.4%
In JetBrains TeamCity before 2026.2, 2026.1.4, 2025.11.8 remote code execution via a whitelist bypass in the build messages protocol was possible
JetBrains · TeamCity
Summary
In JetBrains TeamCity (before 2026.2, 2026.1.4, and 2025.11.8), a whitelist bypass in the build messages protocol allows remote code execution because untrusted data is deserialized. An attacker with network access can exploit this without authentication or user interaction, gaining the ability to run arbitrary code on the server.
Heading is the official description · NVD
Priority scorePatchfirst’s 0 to 100 ranking. It adds points for CISA KEV listing, ransomware use, EPSS, threat reports, public exploit code and CVSS. Every CVE page shows the breakdown. Breakdown
15.7 / 100
- Exploited
- Not confirmed
- Reports
- 0
- Tactics
- 0/15
Exploitation timelineDated milestones for a CVE: when it was disclosed, when exploit code became public, when exploitation was confirmed, and when threat reports named it.
Disclosed on 15 Oct 2026. No public exploit code or confirmed exploitation is recorded.
MITRE ATT&CKA public catalogue of the techniques attackers use, maintained by MITRE. Patchfirst uses it to describe what attackers do with a vulnerability. techniques
No techniques linkedNo ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.
What security researchers reported
Not named in any threat report yetAlso mentioned in 8 community threat pulses (AlienVault OTX)
Weaker evidencePulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.
- Known_Cve | Oct 24, 2026 | Part 1/323 Oct 2026
- Known_Cve | Oct 23, 2026 | Part 1/322 Oct 2026
- Known_Cve | Oct 22, 2026 | Part 2/421 Oct 2026
- Known_Cve | Oct 21, 2026 | Part 3/420 Oct 2026
- Known_Cve | Oct 20, 2026 | Part 3/419 Oct 2026
- Known_Cve | Oct 19, 2026 | Part 3/418 Oct 2026
- 2 more on OTX