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TI-2026-85836 Aliases CVE-2026-123294GHSA-7rmr-7x63-w9r3

JetBrains Hub privilege escalation through email authentication changes

Priority MEDIUM 43CWE-915Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Tampering
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-915.

Summary

CVE-2026-123294 (GHSA-7rmr-7x63-w9r3) affects JetBrains Hub before 2026.2.52556, where privilege escalation was possible by changing email authentication details during the verification flow. The weakness is CWE-915, Improperly Controlled Modification of Dynamically-Determined Object Attributes. The CVSS 3.1 base score is 9.6 (CRITICAL), with vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N. The vulnerability is not listed in CISA's KEV catalog, and the references contain no exploit link.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

In JetBrains Hub before 2026.2.52556 privilege escalation was possible by changing email authentication details during the verification flow

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00438 38th percentileScored 2026-11-07
Fix Fixed Hub (JetBrains): 2026.2.52556

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
JetBrainsHubbefore 2026.2.525562026.2.52556Patch availableCNA
  • Hub VendorJetBrains Affected before 2026.2.52556 Fixed in 2026.2.52556 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:jetbrains:hub:*:*:*:*:*:*:*:*——JetBrains
  • cpe:2.3:a:jetbrains:hub:*:*:*:*:*:*:*:* Versions — — ·JetBrains

Remediation

Update JetBrains Hub to 2026.2.52556, the version that fixes this issue.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

  • Fix · CNA Hub (JetBrains) Fixed in 2026.2.52556

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    JetBrains Hub 2026.2.52556

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-85840 Command injection in JetBrains Hub SMTP email verificationPriority LOW 26
    Show all 2 records →

Timeline

  1. 2026-11-06 Threatist record created from CVE-2026-123294
  2. 2026-11-06 Alias added: GHSA-7rmr-7x63-w9r3
  3. 2026-11-06 CISA SSVC decision points changed
  4. 2026-11-07 CISA SSVC decision points changed

References

Other 1

  • TI-2026-45031 Deserialization of untrusted data in JetBrains TeamCity KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-18053 In JetBrains TeamCity before 2023.11.4 authentication bypass allowing to perform admin actions was possible KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-22884 In JetBrains TeamCity before 2023.05.4 authentication bypass leading to RCE on TeamCity Server was possible KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-18054 In JetBrains TeamCity before 2023.11.4 path traversal allowing to perform limited admin actions was possible KEVCVSS 3.1HIGH 7.3
  • TI-2024-15905 In JetBrains TeamCity before 2023.11.3 authentication bypass leading to RCE was possible CVSS 3.1CRITICAL 9.8
  • TI-2024-24589 Insufficiently protected credentials in JetBrains IntelliJ IDEA CVSS 3.1CRITICAL 9.3
See all 787 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences