Expired account tokens accepted in JetBrains Datalore
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
JetBrains Datalore before 2026.4 does not validate the expiration of account tokens, a flaw tracked as CWE-672 (operation on a resource after expiration or release). A remote attacker who has no account access can use an expired account token to start a new authenticated session, with high impact on confidentiality and integrity. No exploitation is reported.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Description from the CNA
In JetBrains Datalore before 2026.4 missing expiration validation of account tokens allowed a new authenticated session
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
Update JetBrains Datalore to version 2026.4 or later, which fixes the flaw.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
- Fix · CNA Datalore (JetBrains) Fixed in 2026.4
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
JetBrains Datalore 2026.4
15 records Highest priority Priority MEDIUM 1 MEDIUM, 14 LOW
Other records, highest priority first
- TI-2026-85995 Improper link resolution in JetBrains Datalore exposes SSH private keysPriority MEDIUM 40
- TI-2026-85821 Incorrect authorization in JetBrains Datalore allows code execution by viewersPriority LOW 39
- TI-2026-85993 Improper scope validation in JetBrains Datalore database tasksPriority LOW 35
Timeline
- 2026-11-06 Threatist record created from CVE-2026-123282
- 2026-11-06 Alias added: GHSA-gh74-6jq8-f3wj
- 2026-11-08 Priority changed: MEDIUM → LOW
References
More JetBrains vulnerabilities
- 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
Sources
- CVE-2026-123282 · CVE Program
- CVE-2026-123282 · NVD
- FIRST EPSS
- GHSA-gh74-6jq8-f3wj · GitHub Advisory Database · CC BY 4.0
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