CVE-2026-100263

Summary

In JetBrains YouTrack before 2026.2.18991 stored HTML injection via the User-Agent header was possible

Affected Software

VendorProductVersion RangeStatus
JetBrainsYouTrack0 < 2026.2.18991affected

Weaknesses

  • CWE-79: CWE-79

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References