TI-2026-85876 Aliases CVE-2026-123335 GHSA-5xvg-48vq-jjc7

JetBrains YouTrack missing authorization lets users attach tags to any issue

LOW 16CWE-862Published 2026-11-06 · Updated 2026-11-06

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Required
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: None · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

JetBrains YouTrack versions before 2026.2.19562, 2026.1.14137 and 2025.3.169041 are affected. A missing authorization check (CWE-862) lets a user attach tags to any issue through the tag issues collection. The attacker needs a low-privilege account, and a user interaction is required.

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

Description from the CNA

In JetBrains YouTrack before 2026.2.19562, 2026.1.14137, 2025.3.169041 missing authorization allowed attaching tags to any issue via the tag issues collection

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00175 7th percentileScored 2026-11-07

Fix Fixed YouTrack (JetBrains): 2026.2.19562, 2026.1.14137, 2025.3.169041

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
JetBrains	YouTrack	before 2026.2.19562, 2026.1.14137, 2025.3.169041	2026.2.19562, 2026.1.14137, 2025.3.169041	Patch available	CNA

YouTrack VendorJetBrains Affected before 2026.2.19562, 2026.1.14137, 2025.3.169041 Fixed in 2026.2.19562, 2026.1.14137, 2025.3.169041 Patch available CNA

CPE names Threatist (inferred) · 1

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

CPE	Versions	Role	Vendor
cpe:2.3:a:jetbrains:youtrack::::::::	—	—	JetBrains

cpe:2.3:a:jetbrains:youtrack:*:*:*:*:*:*:*:* Versions — — ·JetBrains

Remediation

Upgrade JetBrains YouTrack to 2026.2.19562, 2026.1.14137 or 2025.3.169041, matching the release line in use.

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

Fix · CNA YouTrack (JetBrains) Fixed in 2026.2.19562, 2026.1.14137, 2025.3.169041

Timeline

2026-11-06 Threatist record created from CVE-2026-123335
2026-11-06 Alias added: GHSA-5xvg-48vq-jjc7
2026-11-06 CISA SSVC decision points changed

References

Other 1

https://www.jetbrains.com/privacy-security/issues-fixed/

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