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JetBrains security advisory (AV26-709)

critical
Serial number: AV26-709 Date: July 16, 2026 On July 14, 2026, JetBrains published security advisories to address vulnerabilities in multiple products. Included were critical updates for the following products: JetBrains TeamCity – versions prior to 2026.1.2 JetBrains YouTrack – multiple versions JetBrains IntelliJ IDEA – versions prior to 2026.1.4 and 2026.2 The Cyber Centre encourages users and administrators to review the provided web link and apply the necessary updates. JetBrains – Fixed security issues

CSIRTS triage

vendor: JetBrainsproduct: JetBrains TeamCityOtheraffected: prior to 2026.1.2
What
JetBrains published security advisories to address vulnerabilities in multiple products.
Who is affected
Users and administrators of JetBrains TeamCity prior to version 2026.1.2.
Urgency
Remediation is urgent due to the critical nature of the vulnerabilities.
Action
Users should apply the necessary updates.

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Details

Source
Canadian Centre for Cyber Security (CA · national-cert · site)
Severity
critical
Published
2026-07-16
Exploitation
Not in CISA KEV at last sync

Original advisory: https://cyber.gc.ca/en/alerts-advisories/jetbrains-security-advisory-av26-709

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