CVE-2026-63077

TeamCity · remote code execution

CVSS 3.1 9.8 CRITICALCheck source for fixed versionsCISA KEV

Original advisory

cve-program · CVE-2026-63077

Published

In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was possible via the agent polling protocol

Read the publisher's advisory

Affected versions, risk and source history

Exploitation and risk

Source status

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CVE-2026-63077

Listed in CISA KEV · added 5 Aug 2026 · JetBrains · TeamCity

JetBrains TeamCity contains a deserialization of untrusted data vulnerability that could allow unauthenticated remote code execution via the agent polling protocol.

CISA source · CISA-cited reference

No EPSS score is available here for this CVE.

Saved 23 Oct 2026 16:01:26 UTC · View this risk record (JSON)

cve-program · CVE-2026-63077

Published

In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was possible via the agent polling protocol

Source published: 27 Jul 2026 16:44:32 UTC
Source modified: 23 Sep 2026 03:55:33 UTC
Saved here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 3.1 · 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H