Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-100266
JetBrains Hub — In JetBrains Hub before 2026.2.52366 missing authorisation allowed authenticated users to send arbitrary emails from the server's trusted…
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L L N U N H N 6.5 .0023 12.3 —
AFFECTED
Product Versions Fixed
Hub unspecified —
TIMELINE
Sep 25 Reserved by JetBrains
Sep 30 Published (CNA: JetBrains)
Oct 2 RESCORED — CVE-2026-100266 (JetBrains Hub). CVSS 7.7 → 6.5 (NVD).
Description
In JetBrains Hub before 2026.2.52366 missing authorisation allowed authenticated users to send arbitrary emails from the server's trusted address
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| September 25, 2026 | Reserved | Reserved by JetBrains |
| September 30, 2026 | Published | Published (CNA: JetBrains) |
| October 2, 2026 | RESCORED | RESCORED — CVE-2026-100266 (JetBrains Hub). CVSS 7.7 → 6.5 (NVD). |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| JetBrains | Hub | — | — | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-100266 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
