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    CVE-2026-123336

    In JetBrains YouTrack before 2026.2.19728 the attachment size limit could be bypassed via AI assistant thread conversion

    Published:Nov 6, 2026
    Last Modified:Nov 6, 2026
    EPS:Nov 6, 2026
    EPSS Score:
    CVSS Score:3.1

    Affected Products

    Vendor
    Jetbrains
    Product
    Youtrack

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-123337 (CVSS 3.1) — In JetBrains YouTrack before 2026.2.19656 users without update permission could change issue visibility…
    CVE-2026-123335 (CVSS 3.5) — In JetBrains YouTrack before 2026.2.19562, 2026.1.14137, 2025.3.169041 missing authorization allowed attach…
    CVE-2026-123334 (CVSS 3.8) — In JetBrains YouTrack before 2026.2.19562 project admins of a related project could delete VCS integrations ow…
    CVE-2026-123333 (CVSS 3.8) — In JetBrains YouTrack before 2026.2.19562 sprint creation allowed moving issues from inaccessible projects bet…
    CVE-2026-123332 (CVSS 4.7) — In JetBrains YouTrack before 2026.2.19562 missing authorization allowed Project Admin to manage VCS hosting se…
    CVE-2026-123331 (CVSS 5.4) — In JetBrains YouTrack before 2026.2.19197 article editors could change visibility of restricted child articles…
    CVE-2026-123330 (CVSS 5.4) — In JetBrains YouTrack before 2026.2.19562 missing authorization allowed users with read-only access to change …
    CVE-2026-123329 (CVSS 5.4) — In JetBrains YouTrack before 2026.2.19562 missing authorization in TeamCity integration allowed disclosure of …
    CVE-2026-123328 (CVSS 6.4) — In JetBrains YouTrack before 2026.2.19656 app permission bypass allowed privilege escalation via project tab…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-123336 — Jetbrains (Low 3.1) | CVE-DB