CVE-2019-12866

CRITICALNVD 9.89.8—

9.8

An Insecure Direct Object Reference, with Authorization Bypass through a User-Controlled Key, was possible in JetBrains YouTrack. The issue was fixed in 2018.4.49168.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 0.2%
KEV: Not listed

Published

July 3, 2019

Last Modified

November 21, 2024

References (2)

cve@mitrehttps://blog.jetbrains.com/blog/2019/06/19/jetbrains-security-bulletin-q1-2019/
af854a3a-2127-422b-91ae-364da2661108https://blog.jetbrains.com/blog/2019/06/19/jetbrains-security-bulletin-q1-2019/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-639Authorization Bypass Through User-Controlled Key (IDOR)

Data Freshness Timeline

(refreshed 6× in last 7d / 6× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 17:44 UTCEG score recompute
2026-05-27 17:44 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-23 04:35 UTCOSV refresh

Frequently asked(5)

What is CVE-2019-12866?

CVE-2019-12866 is a critical vulnerability published on July 3, 2019. An Insecure Direct Object Reference, with Authorization Bypass through a User-Controlled Key, was possible in JetBrains YouTrack. The issue was fixed in 2018.4.49168.

When was CVE-2019-12866 disclosed?

CVE-2019-12866 was first published in the National Vulnerability Database on July 3, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2019-12866 actively exploited?

CVE-2019-12866 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2019-12866?

CVE-2019-12866 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2019-12866?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-12866, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2019-12866

📅 Published

🔄 Last Modified

🔗 References (2)